Home / 38,425.02-53,026.43-21,429.29

Finding the Fourth Proportional to 38,425.02, 53,026.43 and 21,429.29

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Solution

The fourth proportional to 38,425.02, 53,026.43 and 21,429.29 is: 29,572.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,425.02 : 53,026.43 = 21,429.29 : x
  2. Step 2: Convert to fraction form
    38,425.02/53,026.43 = 21,429.29/x
  3. Step 3: Cross multiply
    38,425.02x = 53,026.43 × 21,429.29
  4. Step 4: Simplify right side
    38,425.02x = 1,136,318,373.86
  5. Step 5: Solve for x
    x = 1,136,318,373.86/38,425.02
  6. Step 6: Final answer
    x = 29,572.36

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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.