Home / 21,423.50-32,148.55-10,331.32

Finding the Fourth Proportional to 21,423.50, 32,148.55 and 10,331.32

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Solution

The fourth proportional to 21,423.50, 32,148.55 and 10,331.32 is: 15,503.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,423.50 : 32,148.55 = 10,331.32 : x
  2. Step 2: Convert to fraction form
    21,423.50/32,148.55 = 10,331.32/x
  3. Step 3: Cross multiply
    21,423.50x = 32,148.55 × 10,331.32
  4. Step 4: Simplify right side
    21,423.50x = 332,136,957.59
  5. Step 5: Solve for x
    x = 332,136,957.59/21,423.50
  6. Step 6: Final answer
    x = 15,503.39

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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.