Home / 29,348.88-40,501.28-15,920.16

Finding the Fourth Proportional to 29,348.88, 40,501.28 and 15,920.16

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Solution

The fourth proportional to 29,348.88, 40,501.28 and 15,920.16 is: 21,969.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,348.88 : 40,501.28 = 15,920.16 : x
  2. Step 2: Convert to fraction form
    29,348.88/40,501.28 = 15,920.16/x
  3. Step 3: Cross multiply
    29,348.88x = 40,501.28 × 15,920.16
  4. Step 4: Simplify right side
    29,348.88x = 644,786,857.80
  5. Step 5: Solve for x
    x = 644,786,857.80/29,348.88
  6. Step 6: Final answer
    x = 21,969.73

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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.