Home / 22,690.58-31,315.76-13,737.86

Finding the Fourth Proportional to 22,690.58, 31,315.76 and 13,737.86

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Solution

The fourth proportional to 22,690.58, 31,315.76 and 13,737.86 is: 18,959.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,690.58 : 31,315.76 = 13,737.86 : x
  2. Step 2: Convert to fraction form
    22,690.58/31,315.76 = 13,737.86/x
  3. Step 3: Cross multiply
    22,690.58x = 31,315.76 × 13,737.86
  4. Step 4: Simplify right side
    22,690.58x = 430,211,526.67
  5. Step 5: Solve for x
    x = 430,211,526.67/22,690.58
  6. Step 6: Final answer
    x = 18,959.92

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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.