Home / 22,521.60-31,078.08-13,566.96

Finding the Fourth Proportional to 22,521.60, 31,078.08 and 13,566.96

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Solution

The fourth proportional to 22,521.60, 31,078.08 and 13,566.96 is: 18,721.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,521.60 : 31,078.08 = 13,566.96 : x
  2. Step 2: Convert to fraction form
    22,521.60/31,078.08 = 13,566.96/x
  3. Step 3: Cross multiply
    22,521.60x = 31,078.08 × 13,566.96
  4. Step 4: Simplify right side
    22,521.60x = 421,635,068.24
  5. Step 5: Solve for x
    x = 421,635,068.24/22,521.60
  6. Step 6: Final answer
    x = 18,721.36

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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.