Home / 30,545.56-42,152.16-17,971.12

Finding the Fourth Proportional to 30,545.56, 42,152.16 and 17,971.12

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Solution

The fourth proportional to 30,545.56, 42,152.16 and 17,971.12 is: 24,799.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,545.56 : 42,152.16 = 17,971.12 : x
  2. Step 2: Convert to fraction form
    30,545.56/42,152.16 = 17,971.12/x
  3. Step 3: Cross multiply
    30,545.56x = 42,152.16 × 17,971.12
  4. Step 4: Simplify right side
    30,545.56x = 757,521,525.62
  5. Step 5: Solve for x
    x = 757,521,525.62/30,545.56
  6. Step 6: Final answer
    x = 24,799.73

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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.