Home / 31,378.78-43,330.85-23,407.17

Finding the Fourth Proportional to 31,378.78, 43,330.85 and 23,407.17

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Solution

The fourth proportional to 31,378.78, 43,330.85 and 23,407.17 is: 32,322.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,378.78 : 43,330.85 = 23,407.17 : x
  2. Step 2: Convert to fraction form
    31,378.78/43,330.85 = 23,407.17/x
  3. Step 3: Cross multiply
    31,378.78x = 43,330.85 × 23,407.17
  4. Step 4: Simplify right side
    31,378.78x = 1,014,252,572.19
  5. Step 5: Solve for x
    x = 1,014,252,572.19/31,378.78
  6. Step 6: Final answer
    x = 32,322.88

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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.