Home / 38,680.17-58,020.77-12,384.91

Finding the Fourth Proportional to 38,680.17, 58,020.77 and 12,384.91

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Solution

The fourth proportional to 38,680.17, 58,020.77 and 12,384.91 is: 18,577.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,680.17 : 58,020.77 = 12,384.91 : x
  2. Step 2: Convert to fraction form
    38,680.17/58,020.77 = 12,384.91/x
  3. Step 3: Cross multiply
    38,680.17x = 58,020.77 × 12,384.91
  4. Step 4: Simplify right side
    38,680.17x = 718,582,147.41
  5. Step 5: Solve for x
    x = 718,582,147.41/38,680.17
  6. Step 6: Final answer
    x = 18,577.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.