Home / 20,545.86-28,353.30-11,595.30

Finding the Fourth Proportional to 20,545.86, 28,353.30 and 11,595.30

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Solution

The fourth proportional to 20,545.86, 28,353.30 and 11,595.30 is: 16,001.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,545.86 : 28,353.30 = 11,595.30 : x
  2. Step 2: Convert to fraction form
    20,545.86/28,353.30 = 11,595.30/x
  3. Step 3: Cross multiply
    20,545.86x = 28,353.30 × 11,595.30
  4. Step 4: Simplify right side
    20,545.86x = 328,765,019.49
  5. Step 5: Solve for x
    x = 328,765,019.49/20,545.86
  6. Step 6: Final answer
    x = 16,001.52

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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.