Home / 28,362.15-42,543.23-11,716.65

Finding the Fourth Proportional to 28,362.15, 42,543.23 and 11,716.65

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Solution

The fourth proportional to 28,362.15, 42,543.23 and 11,716.65 is: 17,574.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,362.15 : 42,543.23 = 11,716.65 : x
  2. Step 2: Convert to fraction form
    28,362.15/42,543.23 = 11,716.65/x
  3. Step 3: Cross multiply
    28,362.15x = 42,543.23 × 11,716.65
  4. Step 4: Simplify right side
    28,362.15x = 498,464,077.20
  5. Step 5: Solve for x
    x = 498,464,077.20/28,362.15
  6. Step 6: Final answer
    x = 17,574.98

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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.