Home / 30,211.11-45,331.52-13,582.89

Finding the Fourth Proportional to 30,211.11, 45,331.52 and 13,582.89

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Solution

The fourth proportional to 30,211.11, 45,331.52 and 13,582.89 is: 20,381.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,211.11 : 45,331.52 = 13,582.89 : x
  2. Step 2: Convert to fraction form
    30,211.11/45,331.52 = 13,582.89/x
  3. Step 3: Cross multiply
    30,211.11x = 45,331.52 × 13,582.89
  4. Step 4: Simplify right side
    30,211.11x = 615,732,981.78
  5. Step 5: Solve for x
    x = 615,732,981.78/30,211.11
  6. Step 6: Final answer
    x = 20,381.01

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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.