Home / 28,246.87-38,980.34-16,309.95

Finding the Fourth Proportional to 28,246.87, 38,980.34 and 16,309.95

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Solution

The fourth proportional to 28,246.87, 38,980.34 and 16,309.95 is: 22,507.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,246.87 : 38,980.34 = 16,309.95 : x
  2. Step 2: Convert to fraction form
    28,246.87/38,980.34 = 16,309.95/x
  3. Step 3: Cross multiply
    28,246.87x = 38,980.34 × 16,309.95
  4. Step 4: Simplify right side
    28,246.87x = 635,767,314.83
  5. Step 5: Solve for x
    x = 635,767,314.83/28,246.87
  6. Step 6: Final answer
    x = 22,507.53

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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.