Home / 29,280.57-40,390.70-18,522.11

Finding the Fourth Proportional to 29,280.57, 40,390.70 and 18,522.11

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Solution

The fourth proportional to 29,280.57, 40,390.70 and 18,522.11 is: 25,550.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,280.57 : 40,390.70 = 18,522.11 : x
  2. Step 2: Convert to fraction form
    29,280.57/40,390.70 = 18,522.11/x
  3. Step 3: Cross multiply
    29,280.57x = 40,390.70 × 18,522.11
  4. Step 4: Simplify right side
    29,280.57x = 748,120,996.74
  5. Step 5: Solve for x
    x = 748,120,996.74/29,280.57
  6. Step 6: Final answer
    x = 25,550.09

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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.