Home / 19,327.12-28,990.95-5,476.12

Finding the Fourth Proportional to 19,327.12, 28,990.95 and 5,476.12

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Solution

The fourth proportional to 19,327.12, 28,990.95 and 5,476.12 is: 8,214.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,327.12 : 28,990.95 = 5,476.12 : x
  2. Step 2: Convert to fraction form
    19,327.12/28,990.95 = 5,476.12/x
  3. Step 3: Cross multiply
    19,327.12x = 28,990.95 × 5,476.12
  4. Step 4: Simplify right side
    19,327.12x = 158,757,921.11
  5. Step 5: Solve for x
    x = 158,757,921.11/19,327.12
  6. Step 6: Final answer
    x = 8,214.26

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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.