Home / 29,312.87-40,451.63-15,884.42

Finding the Fourth Proportional to 29,312.87, 40,451.63 and 15,884.42

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Solution

The fourth proportional to 29,312.87, 40,451.63 and 15,884.42 is: 21,920.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,312.87 : 40,451.63 = 15,884.42 : x
  2. Step 2: Convert to fraction form
    29,312.87/40,451.63 = 15,884.42/x
  3. Step 3: Cross multiply
    29,312.87x = 40,451.63 × 15,884.42
  4. Step 4: Simplify right side
    29,312.87x = 642,550,398.92
  5. Step 5: Solve for x
    x = 642,550,398.92/29,312.87
  6. Step 6: Final answer
    x = 21,920.42

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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.