Home / 22,030.11-30,402.14-12,470.22

Finding the Fourth Proportional to 22,030.11, 30,402.14 and 12,470.22

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Solution

The fourth proportional to 22,030.11, 30,402.14 and 12,470.22 is: 17,209.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,030.11 : 30,402.14 = 12,470.22 : x
  2. Step 2: Convert to fraction form
    22,030.11/30,402.14 = 12,470.22/x
  3. Step 3: Cross multiply
    22,030.11x = 30,402.14 × 12,470.22
  4. Step 4: Simplify right side
    22,030.11x = 379,121,311.92
  5. Step 5: Solve for x
    x = 379,121,311.92/22,030.11
  6. Step 6: Final answer
    x = 17,209.23

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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.