Home / 21,513.40-32,274.20-7,472.88

Finding the Fourth Proportional to 21,513.40, 32,274.20 and 7,472.88

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Solution

The fourth proportional to 21,513.40, 32,274.20 and 7,472.88 is: 11,210.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,513.40 : 32,274.20 = 7,472.88 : x
  2. Step 2: Convert to fraction form
    21,513.40/32,274.20 = 7,472.88/x
  3. Step 3: Cross multiply
    21,513.40x = 32,274.20 × 7,472.88
  4. Step 4: Simplify right side
    21,513.40x = 241,181,223.70
  5. Step 5: Solve for x
    x = 241,181,223.70/21,513.40
  6. Step 6: Final answer
    x = 11,210.74

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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.