Home / 28,589.12-39,454.80-16,015.76

Finding the Fourth Proportional to 28,589.12, 39,454.80 and 16,015.76

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Solution

The fourth proportional to 28,589.12, 39,454.80 and 16,015.76 is: 22,102.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,589.12 : 39,454.80 = 16,015.76 : x
  2. Step 2: Convert to fraction form
    28,589.12/39,454.80 = 16,015.76/x
  3. Step 3: Cross multiply
    28,589.12x = 39,454.80 × 16,015.76
  4. Step 4: Simplify right side
    28,589.12x = 631,898,607.65
  5. Step 5: Solve for x
    x = 631,898,607.65/28,589.12
  6. Step 6: Final answer
    x = 22,102.77

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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.