Home / 28,518.84-39,357.18-15,943.56

Finding the Fourth Proportional to 28,518.84, 39,357.18 and 15,943.56

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Solution

The fourth proportional to 28,518.84, 39,357.18 and 15,943.56 is: 22,002.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,518.84 : 39,357.18 = 15,943.56 : x
  2. Step 2: Convert to fraction form
    28,518.84/39,357.18 = 15,943.56/x
  3. Step 3: Cross multiply
    28,518.84x = 39,357.18 × 15,943.56
  4. Step 4: Simplify right side
    28,518.84x = 627,493,560.76
  5. Step 5: Solve for x
    x = 627,493,560.76/28,518.84
  6. Step 6: Final answer
    x = 22,002.77

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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.