Home / 29,400.40-40,572.39-15,971.55

Finding the Fourth Proportional to 29,400.40, 40,572.39 and 15,971.55

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Solution

The fourth proportional to 29,400.40, 40,572.39 and 15,971.55 is: 22,040.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,400.40 : 40,572.39 = 15,971.55 : x
  2. Step 2: Convert to fraction form
    29,400.40/40,572.39 = 15,971.55/x
  3. Step 3: Cross multiply
    29,400.40x = 40,572.39 × 15,971.55
  4. Step 4: Simplify right side
    29,400.40x = 648,003,955.50
  5. Step 5: Solve for x
    x = 648,003,955.50/29,400.40
  6. Step 6: Final answer
    x = 22,040.65

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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.