Home / 28,677.29-39,580.98-15,934.85

Finding the Fourth Proportional to 28,677.29, 39,580.98 and 15,934.85

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Solution

The fourth proportional to 28,677.29, 39,580.98 and 15,934.85 is: 21,993.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,677.29 : 39,580.98 = 15,934.85 : x
  2. Step 2: Convert to fraction form
    28,677.29/39,580.98 = 15,934.85/x
  3. Step 3: Cross multiply
    28,677.29x = 39,580.98 × 15,934.85
  4. Step 4: Simplify right side
    28,677.29x = 630,716,979.15
  5. Step 5: Solve for x
    x = 630,716,979.15/28,677.29
  6. Step 6: Final answer
    x = 21,993.60

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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.