Home / 29,217.04-40,319.48-15,788.28

Finding the Fourth Proportional to 29,217.04, 40,319.48 and 15,788.28

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Solution

The fourth proportional to 29,217.04, 40,319.48 and 15,788.28 is: 21,787.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,217.04 : 40,319.48 = 15,788.28 : x
  2. Step 2: Convert to fraction form
    29,217.04/40,319.48 = 15,788.28/x
  3. Step 3: Cross multiply
    29,217.04x = 40,319.48 × 15,788.28
  4. Step 4: Simplify right side
    29,217.04x = 636,575,239.69
  5. Step 5: Solve for x
    x = 636,575,239.69/29,217.04
  6. Step 6: Final answer
    x = 21,787.81

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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.