Home / 28,677.10-39,580.73-15,934.66

Finding the Fourth Proportional to 28,677.10, 39,580.73 and 15,934.66

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Solution

The fourth proportional to 28,677.10, 39,580.73 and 15,934.66 is: 21,993.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,677.10 : 39,580.73 = 15,934.66 : x
  2. Step 2: Convert to fraction form
    28,677.10/39,580.73 = 15,934.66/x
  3. Step 3: Cross multiply
    28,677.10x = 39,580.73 × 15,934.66
  4. Step 4: Simplify right side
    28,677.10x = 630,705,475.10
  5. Step 5: Solve for x
    x = 630,705,475.10/28,677.10
  6. Step 6: Final answer
    x = 21,993.35

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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.