Home / 28,094.80-42,158.40-10,577.20

Finding the Fourth Proportional to 28,094.80, 42,158.40 and 10,577.20

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Solution

The fourth proportional to 28,094.80, 42,158.40 and 10,577.20 is: 15,871.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,094.80 : 42,158.40 = 10,577.20 : x
  2. Step 2: Convert to fraction form
    28,094.80/42,158.40 = 10,577.20/x
  3. Step 3: Cross multiply
    28,094.80x = 42,158.40 × 10,577.20
  4. Step 4: Simplify right side
    28,094.80x = 445,917,828.48
  5. Step 5: Solve for x
    x = 445,917,828.48/28,094.80
  6. Step 6: Final answer
    x = 15,871.90

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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.