Home / 20,737.19-31,088.37-8,266.43

Finding the Fourth Proportional to 20,737.19, 31,088.37 and 8,266.43

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Solution

The fourth proportional to 20,737.19, 31,088.37 and 8,266.43 is: 12,392.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,737.19 : 31,088.37 = 8,266.43 : x
  2. Step 2: Convert to fraction form
    20,737.19/31,088.37 = 8,266.43/x
  3. Step 3: Cross multiply
    20,737.19x = 31,088.37 × 8,266.43
  4. Step 4: Simplify right side
    20,737.19x = 256,989,834.42
  5. Step 5: Solve for x
    x = 256,989,834.42/20,737.19
  6. Step 6: Final answer
    x = 12,392.70

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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.