Home / 32,981.28-45,498.36-21,646.20

Finding the Fourth Proportional to 32,981.28, 45,498.36 and 21,646.20

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Solution

The fourth proportional to 32,981.28, 45,498.36 and 21,646.20 is: 29,861.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,981.28 : 45,498.36 = 21,646.20 : x
  2. Step 2: Convert to fraction form
    32,981.28/45,498.36 = 21,646.20/x
  3. Step 3: Cross multiply
    32,981.28x = 45,498.36 × 21,646.20
  4. Step 4: Simplify right side
    32,981.28x = 984,866,600.23
  5. Step 5: Solve for x
    x = 984,866,600.23/32,981.28
  6. Step 6: Final answer
    x = 29,861.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.