Home / 22,439.60-30,966.84-12,368.39

Finding the Fourth Proportional to 22,439.60, 30,966.84 and 12,368.39

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Solution

The fourth proportional to 22,439.60, 30,966.84 and 12,368.39 is: 17,068.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,439.60 : 30,966.84 = 12,368.39 : x
  2. Step 2: Convert to fraction form
    22,439.60/30,966.84 = 12,368.39/x
  3. Step 3: Cross multiply
    22,439.60x = 30,966.84 × 12,368.39
  4. Step 4: Simplify right side
    22,439.60x = 383,010,031.60
  5. Step 5: Solve for x
    x = 383,010,031.60/22,439.60
  6. Step 6: Final answer
    x = 17,068.49

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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.