Home / 28,150.90-42,195.96-18,297.28

Finding the Fourth Proportional to 28,150.90, 42,195.96 and 18,297.28

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Solution

The fourth proportional to 28,150.90, 42,195.96 and 18,297.28 is: 27,426.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,150.90 : 42,195.96 = 18,297.28 : x
  2. Step 2: Convert to fraction form
    28,150.90/42,195.96 = 18,297.28/x
  3. Step 3: Cross multiply
    28,150.90x = 42,195.96 × 18,297.28
  4. Step 4: Simplify right side
    28,150.90x = 772,071,294.99
  5. Step 5: Solve for x
    x = 772,071,294.99/28,150.90
  6. Step 6: Final answer
    x = 27,426.17

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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.