Home / 28,094.40-38,769.12-18,008.64

Finding the Fourth Proportional to 28,094.40, 38,769.12 and 18,008.64

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Solution

The fourth proportional to 28,094.40, 38,769.12 and 18,008.64 is: 24,851.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,094.40 : 38,769.12 = 18,008.64 : x
  2. Step 2: Convert to fraction form
    28,094.40/38,769.12 = 18,008.64/x
  3. Step 3: Cross multiply
    28,094.40x = 38,769.12 × 18,008.64
  4. Step 4: Simplify right side
    28,094.40x = 698,179,125.20
  5. Step 5: Solve for x
    x = 698,179,125.20/28,094.40
  6. Step 6: Final answer
    x = 24,851.18

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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.