Home / 28,468.30-39,302.65-18,921.14

Finding the Fourth Proportional to 28,468.30, 39,302.65 and 18,921.14

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Solution

The fourth proportional to 28,468.30, 39,302.65 and 18,921.14 is: 26,122.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,468.30 : 39,302.65 = 18,921.14 : x
  2. Step 2: Convert to fraction form
    28,468.30/39,302.65 = 18,921.14/x
  3. Step 3: Cross multiply
    28,468.30x = 39,302.65 × 18,921.14
  4. Step 4: Simplify right side
    28,468.30x = 743,650,807.01
  5. Step 5: Solve for x
    x = 743,650,807.01/28,468.30
  6. Step 6: Final answer
    x = 26,122.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.