Home / 28,034.40-42,051.60-7,257.90

Finding the Fourth Proportional to 28,034.40, 42,051.60 and 7,257.90

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Solution

The fourth proportional to 28,034.40, 42,051.60 and 7,257.90 is: 10,886.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,034.40 : 42,051.60 = 7,257.90 : x
  2. Step 2: Convert to fraction form
    28,034.40/42,051.60 = 7,257.90/x
  3. Step 3: Cross multiply
    28,034.40x = 42,051.60 × 7,257.90
  4. Step 4: Simplify right side
    28,034.40x = 305,206,307.64
  5. Step 5: Solve for x
    x = 305,206,307.64/28,034.40
  6. Step 6: Final answer
    x = 10,886.85

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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.