Home / 28,545.03-42,762.14-21,034.96

Finding the Fourth Proportional to 28,545.03, 42,762.14 and 21,034.96

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Solution

The fourth proportional to 28,545.03, 42,762.14 and 21,034.96 is: 31,511.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,545.03 : 42,762.14 = 21,034.96 : x
  2. Step 2: Convert to fraction form
    28,545.03/42,762.14 = 21,034.96/x
  3. Step 3: Cross multiply
    28,545.03x = 42,762.14 × 21,034.96
  4. Step 4: Simplify right side
    28,545.03x = 899,499,799.24
  5. Step 5: Solve for x
    x = 899,499,799.24/28,545.03
  6. Step 6: Final answer
    x = 31,511.61

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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.