Home / 29,670.60-40,931.40-18,336.15

Finding the Fourth Proportional to 29,670.60, 40,931.40 and 18,336.15

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Solution

The fourth proportional to 29,670.60, 40,931.40 and 18,336.15 is: 25,295.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,670.60 : 40,931.40 = 18,336.15 : x
  2. Step 2: Convert to fraction form
    29,670.60/40,931.40 = 18,336.15/x
  3. Step 3: Cross multiply
    29,670.60x = 40,931.40 × 18,336.15
  4. Step 4: Simplify right side
    29,670.60x = 750,524,290.11
  5. Step 5: Solve for x
    x = 750,524,290.11/29,670.60
  6. Step 6: Final answer
    x = 25,295.22

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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.