Home / 29,312.85-40,451.64-15,884.44

Finding the Fourth Proportional to 29,312.85, 40,451.64 and 15,884.44

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Solution

The fourth proportional to 29,312.85, 40,451.64 and 15,884.44 is: 21,920.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,312.85 : 40,451.64 = 15,884.44 : x
  2. Step 2: Convert to fraction form
    29,312.85/40,451.64 = 15,884.44/x
  3. Step 3: Cross multiply
    29,312.85x = 40,451.64 × 15,884.44
  4. Step 4: Simplify right side
    29,312.85x = 642,551,487.79
  5. Step 5: Solve for x
    x = 642,551,487.79/29,312.85
  6. Step 6: Final answer
    x = 21,920.47

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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.