Home / 20,686.52-31,001.83-14,830.22

Finding the Fourth Proportional to 20,686.52, 31,001.83 and 14,830.22

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Solution

The fourth proportional to 20,686.52, 31,001.83 and 14,830.22 is: 22,225.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,686.52 : 31,001.83 = 14,830.22 : x
  2. Step 2: Convert to fraction form
    20,686.52/31,001.83 = 14,830.22/x
  3. Step 3: Cross multiply
    20,686.52x = 31,001.83 × 14,830.22
  4. Step 4: Simplify right side
    20,686.52x = 459,763,959.30
  5. Step 5: Solve for x
    x = 459,763,959.30/20,686.52
  6. Step 6: Final answer
    x = 22,225.29

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1.5x scale

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.