Home / 38,432.56-53,037.02-21,436.38

Finding the Fourth Proportional to 38,432.56, 53,037.02 and 21,436.38

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Solution

The fourth proportional to 38,432.56, 53,037.02 and 21,436.38 is: 29,582.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,432.56 : 53,037.02 = 21,436.38 : x
  2. Step 2: Convert to fraction form
    38,432.56/53,037.02 = 21,436.38/x
  3. Step 3: Cross multiply
    38,432.56x = 53,037.02 × 21,436.38
  4. Step 4: Simplify right side
    38,432.56x = 1,136,921,714.79
  5. Step 5: Solve for x
    x = 1,136,921,714.79/38,432.56
  6. Step 6: Final answer
    x = 29,582.25

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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.