Home / 29,350.12-40,502.54-15,920.86

Finding the Fourth Proportional to 29,350.12, 40,502.54 and 15,920.86

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Solution

The fourth proportional to 29,350.12, 40,502.54 and 15,920.86 is: 21,970.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,350.12 : 40,502.54 = 15,920.86 : x
  2. Step 2: Convert to fraction form
    29,350.12/40,502.54 = 15,920.86/x
  3. Step 3: Cross multiply
    29,350.12x = 40,502.54 × 15,920.86
  4. Step 4: Simplify right side
    29,350.12x = 644,835,268.98
  5. Step 5: Solve for x
    x = 644,835,268.98/29,350.12
  6. Step 6: Final answer
    x = 21,970.45

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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.