Home / 38,432.95-53,037.56-21,436.76

Finding the Fourth Proportional to 38,432.95, 53,037.56 and 21,436.76

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Solution

The fourth proportional to 38,432.95, 53,037.56 and 21,436.76 is: 29,582.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,432.95 : 53,037.56 = 21,436.76 : x
  2. Step 2: Convert to fraction form
    38,432.95/53,037.56 = 21,436.76/x
  3. Step 3: Cross multiply
    38,432.95x = 53,037.56 × 21,436.76
  4. Step 4: Simplify right side
    38,432.95x = 1,136,953,454.76
  5. Step 5: Solve for x
    x = 1,136,953,454.76/38,432.95
  6. Step 6: Final answer
    x = 29,582.77

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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.