Home / 28,204.12-42,302.94-7,427.08

Finding the Fourth Proportional to 28,204.12, 42,302.94 and 7,427.08

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Solution

The fourth proportional to 28,204.12, 42,302.94 and 7,427.08 is: 11,139.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,204.12 : 42,302.94 = 7,427.08 : x
  2. Step 2: Convert to fraction form
    28,204.12/42,302.94 = 7,427.08/x
  3. Step 3: Cross multiply
    28,204.12x = 42,302.94 × 7,427.08
  4. Step 4: Simplify right side
    28,204.12x = 314,187,319.62
  5. Step 5: Solve for x
    x = 314,187,319.62/28,204.12
  6. Step 6: Final answer
    x = 11,139.77

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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.