Home / 29,338.31-40,486.91-15,909.50

Finding the Fourth Proportional to 29,338.31, 40,486.91 and 15,909.50

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Solution

The fourth proportional to 29,338.31, 40,486.91 and 15,909.50 is: 21,955.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,338.31 : 40,486.91 = 15,909.50 : x
  2. Step 2: Convert to fraction form
    29,338.31/40,486.91 = 15,909.50/x
  3. Step 3: Cross multiply
    29,338.31x = 40,486.91 × 15,909.50
  4. Step 4: Simplify right side
    29,338.31x = 644,126,212.66
  5. Step 5: Solve for x
    x = 644,126,212.66/29,338.31
  6. Step 6: Final answer
    x = 21,955.13

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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.