Home / 28,204.28-42,297.78-7,425.08

Finding the Fourth Proportional to 28,204.28, 42,297.78 and 7,425.08

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Solution

The fourth proportional to 28,204.28, 42,297.78 and 7,425.08 is: 11,135.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,204.28 : 42,297.78 = 7,425.08 : x
  2. Step 2: Convert to fraction form
    28,204.28/42,297.78 = 7,425.08/x
  3. Step 3: Cross multiply
    28,204.28x = 42,297.78 × 7,425.08
  4. Step 4: Simplify right side
    28,204.28x = 314,064,400.32
  5. Step 5: Solve for x
    x = 314,064,400.32/28,204.28
  6. Step 6: Final answer
    x = 11,135.35

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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.