Home / 38,432.76-53,037.52-21,436.44

Finding the Fourth Proportional to 38,432.76, 53,037.52 and 21,436.44

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Solution

The fourth proportional to 38,432.76, 53,037.52 and 21,436.44 is: 29,582.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,432.76 : 53,037.52 = 21,436.44 : x
  2. Step 2: Convert to fraction form
    38,432.76/53,037.52 = 21,436.44/x
  3. Step 3: Cross multiply
    38,432.76x = 53,037.52 × 21,436.44
  4. Step 4: Simplify right side
    38,432.76x = 1,136,935,615.23
  5. Step 5: Solve for x
    x = 1,136,935,615.23/38,432.76
  6. Step 6: Final answer
    x = 29,582.46

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.