Home / 31,019.28-42,775.14-26,557.80

Finding the Fourth Proportional to 31,019.28, 42,775.14 and 26,557.80

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Solution

The fourth proportional to 31,019.28, 42,775.14 and 26,557.80 is: 36,622.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,019.28 : 42,775.14 = 26,557.80 : x
  2. Step 2: Convert to fraction form
    31,019.28/42,775.14 = 26,557.80/x
  3. Step 3: Cross multiply
    31,019.28x = 42,775.14 × 26,557.80
  4. Step 4: Simplify right side
    31,019.28x = 1,136,013,613.09
  5. Step 5: Solve for x
    x = 1,136,013,613.09/31,019.28
  6. Step 6: Final answer
    x = 36,622.82

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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.