Home / 22,035.36-30,397.28-13,539.40

Finding the Fourth Proportional to 22,035.36, 30,397.28 and 13,539.40

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Solution

The fourth proportional to 22,035.36, 30,397.28 and 13,539.40 is: 18,677.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,035.36 : 30,397.28 = 13,539.40 : x
  2. Step 2: Convert to fraction form
    22,035.36/30,397.28 = 13,539.40/x
  3. Step 3: Cross multiply
    22,035.36x = 30,397.28 × 13,539.40
  4. Step 4: Simplify right side
    22,035.36x = 411,560,932.83
  5. Step 5: Solve for x
    x = 411,560,932.83/22,035.36
  6. Step 6: Final answer
    x = 18,677.30

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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.