Home / 28,203.32-42,305.28-11,559.08

Finding the Fourth Proportional to 28,203.32, 42,305.28 and 11,559.08

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Solution

The fourth proportional to 28,203.32, 42,305.28 and 11,559.08 is: 17,338.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,203.32 : 42,305.28 = 11,559.08 : x
  2. Step 2: Convert to fraction form
    28,203.32/42,305.28 = 11,559.08/x
  3. Step 3: Cross multiply
    28,203.32x = 42,305.28 × 11,559.08
  4. Step 4: Simplify right side
    28,203.32x = 489,010,115.94
  5. Step 5: Solve for x
    x = 489,010,115.94/28,203.32
  6. Step 6: Final answer
    x = 17,338.74

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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.