Home / 31,024.22-42,839.28-28,772.98

Finding the Fourth Proportional to 31,024.22, 42,839.28 and 28,772.98

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Solution

The fourth proportional to 31,024.22, 42,839.28 and 28,772.98 is: 39,730.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,024.22 : 42,839.28 = 28,772.98 : x
  2. Step 2: Convert to fraction form
    31,024.22/42,839.28 = 28,772.98/x
  3. Step 3: Cross multiply
    31,024.22x = 42,839.28 × 28,772.98
  4. Step 4: Simplify right side
    31,024.22x = 1,232,613,746.65
  5. Step 5: Solve for x
    x = 1,232,613,746.65/31,024.22
  6. Step 6: Final answer
    x = 39,730.69

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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.