Home / 31,040.49-42,810.75-19,082.46

Finding the Fourth Proportional to 31,040.49, 42,810.75 and 19,082.46

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Solution

The fourth proportional to 31,040.49, 42,810.75 and 19,082.46 is: 26,318.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,040.49 : 42,810.75 = 19,082.46 : x
  2. Step 2: Convert to fraction form
    31,040.49/42,810.75 = 19,082.46/x
  3. Step 3: Cross multiply
    31,040.49x = 42,810.75 × 19,082.46
  4. Step 4: Simplify right side
    31,040.49x = 816,934,424.45
  5. Step 5: Solve for x
    x = 816,934,424.45/31,040.49
  6. Step 6: Final answer
    x = 26,318.35

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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.