Home / 28,104.71-42,136.21-17,008.76

Finding the Fourth Proportional to 28,104.71, 42,136.21 and 17,008.76

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Solution

The fourth proportional to 28,104.71, 42,136.21 and 17,008.76 is: 25,500.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,104.71 : 42,136.21 = 17,008.76 : x
  2. Step 2: Convert to fraction form
    28,104.71/42,136.21 = 17,008.76/x
  3. Step 3: Cross multiply
    28,104.71x = 42,136.21 × 17,008.76
  4. Step 4: Simplify right side
    28,104.71x = 716,684,715.21
  5. Step 5: Solve for x
    x = 716,684,715.21/28,104.71
  6. Step 6: Final answer
    x = 25,500.52

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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.