Home / 31,332.16-43,239.72-18,754.48

Finding the Fourth Proportional to 31,332.16, 43,239.72 and 18,754.48

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Solution

The fourth proportional to 31,332.16, 43,239.72 and 18,754.48 is: 25,881.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,332.16 : 43,239.72 = 18,754.48 : x
  2. Step 2: Convert to fraction form
    31,332.16/43,239.72 = 18,754.48/x
  3. Step 3: Cross multiply
    31,332.16x = 43,239.72 × 18,754.48
  4. Step 4: Simplify right side
    31,332.16x = 810,938,463.95
  5. Step 5: Solve for x
    x = 810,938,463.95/31,332.16
  6. Step 6: Final answer
    x = 25,881.98

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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.