Home / 29,007.88-40,016.64-18,931.66

Finding the Fourth Proportional to 29,007.88, 40,016.64 and 18,931.66

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Solution

The fourth proportional to 29,007.88, 40,016.64 and 18,931.66 is: 26,116.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,007.88 : 40,016.64 = 18,931.66 : x
  2. Step 2: Convert to fraction form
    29,007.88/40,016.64 = 18,931.66/x
  3. Step 3: Cross multiply
    29,007.88x = 40,016.64 × 18,931.66
  4. Step 4: Simplify right side
    29,007.88x = 757,581,422.82
  5. Step 5: Solve for x
    x = 757,581,422.82/29,007.88
  6. Step 6: Final answer
    x = 26,116.40

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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.