Home / 31,041.84-42,839.14-18,295.56

Finding the Fourth Proportional to 31,041.84, 42,839.14 and 18,295.56

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Solution

The fourth proportional to 31,041.84, 42,839.14 and 18,295.56 is: 25,248.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,041.84 : 42,839.14 = 18,295.56 : x
  2. Step 2: Convert to fraction form
    31,041.84/42,839.14 = 18,295.56/x
  3. Step 3: Cross multiply
    31,041.84x = 42,839.14 × 18,295.56
  4. Step 4: Simplify right side
    31,041.84x = 783,766,056.22
  5. Step 5: Solve for x
    x = 783,766,056.22/31,041.84
  6. Step 6: Final answer
    x = 25,248.70

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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.