Home / 21,376.26-32,064.95-10,128.96

Finding the Fourth Proportional to 21,376.26, 32,064.95 and 10,128.96

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Solution

The fourth proportional to 21,376.26, 32,064.95 and 10,128.96 is: 15,193.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,376.26 : 32,064.95 = 10,128.96 : x
  2. Step 2: Convert to fraction form
    21,376.26/32,064.95 = 10,128.96/x
  3. Step 3: Cross multiply
    21,376.26x = 32,064.95 × 10,128.96
  4. Step 4: Simplify right side
    21,376.26x = 324,784,545.31
  5. Step 5: Solve for x
    x = 324,784,545.31/21,376.26
  6. Step 6: Final answer
    x = 15,193.70

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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.