Home / 22,068.76-30,455.56-12,508.40

Finding the Fourth Proportional to 22,068.76, 30,455.56 and 12,508.40

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Solution

The fourth proportional to 22,068.76, 30,455.56 and 12,508.40 is: 17,261.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,068.76 : 30,455.56 = 12,508.40 : x
  2. Step 2: Convert to fraction form
    22,068.76/30,455.56 = 12,508.40/x
  3. Step 3: Cross multiply
    22,068.76x = 30,455.56 × 12,508.40
  4. Step 4: Simplify right side
    22,068.76x = 380,950,326.70
  5. Step 5: Solve for x
    x = 380,950,326.70/22,068.76
  6. Step 6: Final answer
    x = 17,261.97

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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.