Home / 22,502.41-31,055.18-12,945.40

Finding the Fourth Proportional to 22,502.41, 31,055.18 and 12,945.40

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Solution

The fourth proportional to 22,502.41, 31,055.18 and 12,945.40 is: 17,865.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,502.41 : 31,055.18 = 12,945.40 : x
  2. Step 2: Convert to fraction form
    22,502.41/31,055.18 = 12,945.40/x
  3. Step 3: Cross multiply
    22,502.41x = 31,055.18 × 12,945.40
  4. Step 4: Simplify right side
    22,502.41x = 402,021,759.54
  5. Step 5: Solve for x
    x = 402,021,759.54/22,502.41
  6. Step 6: Final answer
    x = 17,865.72

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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.