Home / 28,077.57-42,115.05-7,017.75

Finding the Fourth Proportional to 28,077.57, 42,115.05 and 7,017.75

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Solution

The fourth proportional to 28,077.57, 42,115.05 and 7,017.75 is: 10,526.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,077.57 : 42,115.05 = 7,017.75 : x
  2. Step 2: Convert to fraction form
    28,077.57/42,115.05 = 7,017.75/x
  3. Step 3: Cross multiply
    28,077.57x = 42,115.05 × 7,017.75
  4. Step 4: Simplify right side
    28,077.57x = 295,552,892.14
  5. Step 5: Solve for x
    x = 295,552,892.14/28,077.57
  6. Step 6: Final answer
    x = 10,526.30

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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.