Home / 39,445.88-54,435.48-21,541.28

Finding the Fourth Proportional to 39,445.88, 54,435.48 and 21,541.28

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Solution

The fourth proportional to 39,445.88, 54,435.48 and 21,541.28 is: 29,727.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,445.88 : 54,435.48 = 21,541.28 : x
  2. Step 2: Convert to fraction form
    39,445.88/54,435.48 = 21,541.28/x
  3. Step 3: Cross multiply
    39,445.88x = 54,435.48 × 21,541.28
  4. Step 4: Simplify right side
    39,445.88x = 1,172,609,916.61
  5. Step 5: Solve for x
    x = 1,172,609,916.61/39,445.88
  6. Step 6: Final answer
    x = 29,727.06

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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.