Home / 20,432.33-30,648.45-5,439.45

Finding the Fourth Proportional to 20,432.33, 30,648.45 and 5,439.45

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Solution

The fourth proportional to 20,432.33, 30,648.45 and 5,439.45 is: 8,159.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,432.33 : 30,648.45 = 5,439.45 : x
  2. Step 2: Convert to fraction form
    20,432.33/30,648.45 = 5,439.45/x
  3. Step 3: Cross multiply
    20,432.33x = 30,648.45 × 5,439.45
  4. Step 4: Simplify right side
    20,432.33x = 166,710,816.09
  5. Step 5: Solve for x
    x = 166,710,816.09/20,432.33
  6. Step 6: Final answer
    x = 8,159.17

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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.