Home / 38,432.08-53,036.14-21,436.31

Finding the Fourth Proportional to 38,432.08, 53,036.14 and 21,436.31

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Solution

The fourth proportional to 38,432.08, 53,036.14 and 21,436.31 is: 29,582.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,432.08 : 53,036.14 = 21,436.31 : x
  2. Step 2: Convert to fraction form
    38,432.08/53,036.14 = 21,436.31/x
  3. Step 3: Cross multiply
    38,432.08x = 53,036.14 × 21,436.31
  4. Step 4: Simplify right side
    38,432.08x = 1,136,899,197.15
  5. Step 5: Solve for x
    x = 1,136,899,197.15/38,432.08
  6. Step 6: Final answer
    x = 29,582.04

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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.