Home / 42,888.12-59,206.14-28,571.78

Finding the Fourth Proportional to 42,888.12, 59,206.14 and 28,571.78

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Solution

The fourth proportional to 42,888.12, 59,206.14 and 28,571.78 is: 39,442.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,888.12 : 59,206.14 = 28,571.78 : x
  2. Step 2: Convert to fraction form
    42,888.12/59,206.14 = 28,571.78/x
  3. Step 3: Cross multiply
    42,888.12x = 59,206.14 × 28,571.78
  4. Step 4: Simplify right side
    42,888.12x = 1,691,624,510.70
  5. Step 5: Solve for x
    x = 1,691,624,510.70/42,888.12
  6. Step 6: Final answer
    x = 39,442.73

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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.