Home / 29,317.68-40,458.42-15,888.87

Finding the Fourth Proportional to 29,317.68, 40,458.42 and 15,888.87

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Solution

The fourth proportional to 29,317.68, 40,458.42 and 15,888.87 is: 21,926.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,317.68 : 40,458.42 = 15,888.87 : x
  2. Step 2: Convert to fraction form
    29,317.68/40,458.42 = 15,888.87/x
  3. Step 3: Cross multiply
    29,317.68x = 40,458.42 × 15,888.87
  4. Step 4: Simplify right side
    29,317.68x = 642,838,575.79
  5. Step 5: Solve for x
    x = 642,838,575.79/29,317.68
  6. Step 6: Final answer
    x = 21,926.65

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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.