Home / 28,586.98-42,801.24-21,545.68

Finding the Fourth Proportional to 28,586.98, 42,801.24 and 21,545.68

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Solution

The fourth proportional to 28,586.98, 42,801.24 and 21,545.68 is: 32,258.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,586.98 : 42,801.24 = 21,545.68 : x
  2. Step 2: Convert to fraction form
    28,586.98/42,801.24 = 21,545.68/x
  3. Step 3: Cross multiply
    28,586.98x = 42,801.24 × 21,545.68
  4. Step 4: Simplify right side
    28,586.98x = 922,181,820.64
  5. Step 5: Solve for x
    x = 922,181,820.64/28,586.98
  6. Step 6: Final answer
    x = 32,258.81

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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.