Home / 20,471.32-28,253.86-11,856.24

Finding the Fourth Proportional to 20,471.32, 28,253.86 and 11,856.24

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Solution

The fourth proportional to 20,471.32, 28,253.86 and 11,856.24 is: 16,363.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,471.32 : 28,253.86 = 11,856.24 : x
  2. Step 2: Convert to fraction form
    20,471.32/28,253.86 = 11,856.24/x
  3. Step 3: Cross multiply
    20,471.32x = 28,253.86 × 11,856.24
  4. Step 4: Simplify right side
    20,471.32x = 334,984,545.09
  5. Step 5: Solve for x
    x = 334,984,545.09/20,471.32
  6. Step 6: Final answer
    x = 16,363.60

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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.