Home / 40,398.57-55,730.88-28,468.47

Finding the Fourth Proportional to 40,398.57, 55,730.88 and 28,468.47

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Solution

The fourth proportional to 40,398.57, 55,730.88 and 28,468.47 is: 39,273.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,398.57 : 55,730.88 = 28,468.47 : x
  2. Step 2: Convert to fraction form
    40,398.57/55,730.88 = 28,468.47/x
  3. Step 3: Cross multiply
    40,398.57x = 55,730.88 × 28,468.47
  4. Step 4: Simplify right side
    40,398.57x = 1,586,572,885.35
  5. Step 5: Solve for x
    x = 1,586,572,885.35/40,398.57
  6. Step 6: Final answer
    x = 39,273.00

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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.