Home / 31,187.34-43,038.65-17,040.17

Finding the Fourth Proportional to 31,187.34, 43,038.65 and 17,040.17

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Solution

The fourth proportional to 31,187.34, 43,038.65 and 17,040.17 is: 23,515.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,187.34 : 43,038.65 = 17,040.17 : x
  2. Step 2: Convert to fraction form
    31,187.34/43,038.65 = 17,040.17/x
  3. Step 3: Cross multiply
    31,187.34x = 43,038.65 × 17,040.17
  4. Step 4: Simplify right side
    31,187.34x = 733,386,062.77
  5. Step 5: Solve for x
    x = 733,386,062.77/31,187.34
  6. Step 6: Final answer
    x = 23,515.51

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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.