Home / 28,651.95-42,960.66-12,854.13

Finding the Fourth Proportional to 28,651.95, 42,960.66 and 12,854.13

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Solution

The fourth proportional to 28,651.95, 42,960.66 and 12,854.13 is: 19,273.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,651.95 : 42,960.66 = 12,854.13 : x
  2. Step 2: Convert to fraction form
    28,651.95/42,960.66 = 12,854.13/x
  3. Step 3: Cross multiply
    28,651.95x = 42,960.66 × 12,854.13
  4. Step 4: Simplify right side
    28,651.95x = 552,221,908.53
  5. Step 5: Solve for x
    x = 552,221,908.53/28,651.95
  6. Step 6: Final answer
    x = 19,273.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.