Home / 31,407.89-43,332.17-19,466.87

Finding the Fourth Proportional to 31,407.89, 43,332.17 and 19,466.87

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Solution

The fourth proportional to 31,407.89, 43,332.17 and 19,466.87 is: 26,857.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,407.89 : 43,332.17 = 19,466.87 : x
  2. Step 2: Convert to fraction form
    31,407.89/43,332.17 = 19,466.87/x
  3. Step 3: Cross multiply
    31,407.89x = 43,332.17 × 19,466.87
  4. Step 4: Simplify right side
    31,407.89x = 843,541,406.21
  5. Step 5: Solve for x
    x = 843,541,406.21/31,407.89
  6. Step 6: Final answer
    x = 26,857.63

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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.