Home / 20,510.28-28,288.08-14,845.86

Finding the Fourth Proportional to 20,510.28, 28,288.08 and 14,845.86

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Solution

The fourth proportional to 20,510.28, 28,288.08 and 14,845.86 is: 20,475.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,510.28 : 28,288.08 = 14,845.86 : x
  2. Step 2: Convert to fraction form
    20,510.28/28,288.08 = 14,845.86/x
  3. Step 3: Cross multiply
    20,510.28x = 28,288.08 × 14,845.86
  4. Step 4: Simplify right side
    20,510.28x = 419,960,875.35
  5. Step 5: Solve for x
    x = 419,960,875.35/20,510.28
  6. Step 6: Final answer
    x = 20,475.63

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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.