Home / 28,724.28-39,643.29-16,151.46

Finding the Fourth Proportional to 28,724.28, 39,643.29 and 16,151.46

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Solution

The fourth proportional to 28,724.28, 39,643.29 and 16,151.46 is: 22,291.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,724.28 : 39,643.29 = 16,151.46 : x
  2. Step 2: Convert to fraction form
    28,724.28/39,643.29 = 16,151.46/x
  3. Step 3: Cross multiply
    28,724.28x = 39,643.29 × 16,151.46
  4. Step 4: Simplify right side
    28,724.28x = 640,297,012.70
  5. Step 5: Solve for x
    x = 640,297,012.70/28,724.28
  6. Step 6: Final answer
    x = 22,291.14

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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.