Home / 29,315.60-40,455.27-15,886.47

Finding the Fourth Proportional to 29,315.60, 40,455.27 and 15,886.47

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Solution

The fourth proportional to 29,315.60, 40,455.27 and 15,886.47 is: 21,923.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,315.60 : 40,455.27 = 15,886.47 : x
  2. Step 2: Convert to fraction form
    29,315.60/40,455.27 = 15,886.47/x
  3. Step 3: Cross multiply
    29,315.60x = 40,455.27 × 15,886.47
  4. Step 4: Simplify right side
    29,315.60x = 642,691,433.20
  5. Step 5: Solve for x
    x = 642,691,433.20/29,315.60
  6. Step 6: Final answer
    x = 21,923.19

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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.