Home / 40,612.47-60,930.38-20,621.17

Finding the Fourth Proportional to 40,612.47, 60,930.38 and 20,621.17

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Solution

The fourth proportional to 40,612.47, 60,930.38 and 20,621.17 is: 30,937.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,612.47 : 60,930.38 = 20,621.17 : x
  2. Step 2: Convert to fraction form
    40,612.47/60,930.38 = 20,621.17/x
  3. Step 3: Cross multiply
    40,612.47x = 60,930.38 × 20,621.17
  4. Step 4: Simplify right side
    40,612.47x = 1,256,455,724.14
  5. Step 5: Solve for x
    x = 1,256,455,724.14/40,612.47
  6. Step 6: Final answer
    x = 30,937.68

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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.