Home / 20,737.39-31,106.26-12,862.83

Finding the Fourth Proportional to 20,737.39, 31,106.26 and 12,862.83

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Solution

The fourth proportional to 20,737.39, 31,106.26 and 12,862.83 is: 19,294.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,737.39 : 31,106.26 = 12,862.83 : x
  2. Step 2: Convert to fraction form
    20,737.39/31,106.26 = 12,862.83/x
  3. Step 3: Cross multiply
    20,737.39x = 31,106.26 × 12,862.83
  4. Step 4: Simplify right side
    20,737.39x = 400,114,377.45
  5. Step 5: Solve for x
    x = 400,114,377.45/20,737.39
  6. Step 6: Final answer
    x = 19,294.34

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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.