Home / 28,642.05-42,753.80-26,531.61

Finding the Fourth Proportional to 28,642.05, 42,753.80 and 26,531.61

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Solution

The fourth proportional to 28,642.05, 42,753.80 and 26,531.61 is: 39,603.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,642.05 : 42,753.80 = 26,531.61 : x
  2. Step 2: Convert to fraction form
    28,642.05/42,753.80 = 26,531.61/x
  3. Step 3: Cross multiply
    28,642.05x = 42,753.80 × 26,531.61
  4. Step 4: Simplify right side
    28,642.05x = 1,134,327,014.96
  5. Step 5: Solve for x
    x = 1,134,327,014.96/28,642.05
  6. Step 6: Final answer
    x = 39,603.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.