Home / 21,377.40-32,072.56-10,280.92

Finding the Fourth Proportional to 21,377.40, 32,072.56 and 10,280.92

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Solution

The fourth proportional to 21,377.40, 32,072.56 and 10,280.92 is: 15,424.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,377.40 : 32,072.56 = 10,280.92 : x
  2. Step 2: Convert to fraction form
    21,377.40/32,072.56 = 10,280.92/x
  3. Step 3: Cross multiply
    21,377.40x = 32,072.56 × 10,280.92
  4. Step 4: Simplify right side
    21,377.40x = 329,735,423.56
  5. Step 5: Solve for x
    x = 329,735,423.56/21,377.40
  6. Step 6: Final answer
    x = 15,424.49

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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.