Home / 20,869.10-31,225.16-14,641.26

Finding the Fourth Proportional to 20,869.10, 31,225.16 and 14,641.26

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Solution

The fourth proportional to 20,869.10, 31,225.16 and 14,641.26 is: 21,906.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,869.10 : 31,225.16 = 14,641.26 : x
  2. Step 2: Convert to fraction form
    20,869.10/31,225.16 = 14,641.26/x
  3. Step 3: Cross multiply
    20,869.10x = 31,225.16 × 14,641.26
  4. Step 4: Simplify right side
    20,869.10x = 457,175,686.10
  5. Step 5: Solve for x
    x = 457,175,686.10/20,869.10
  6. Step 6: Final answer
    x = 21,906.82

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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.