Home / 31,144.95-42,966.55-19,045.97

Finding the Fourth Proportional to 31,144.95, 42,966.55 and 19,045.97

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Solution

The fourth proportional to 31,144.95, 42,966.55 and 19,045.97 is: 26,275.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,144.95 : 42,966.55 = 19,045.97 : x
  2. Step 2: Convert to fraction form
    31,144.95/42,966.55 = 19,045.97/x
  3. Step 3: Cross multiply
    31,144.95x = 42,966.55 × 19,045.97
  4. Step 4: Simplify right side
    31,144.95x = 818,339,466.99
  5. Step 5: Solve for x
    x = 818,339,466.99/31,144.95
  6. Step 6: Final answer
    x = 26,275.19

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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.