Home / 43,271.12-64,907.20-15,191.88

Finding the Fourth Proportional to 43,271.12, 64,907.20 and 15,191.88

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Solution

The fourth proportional to 43,271.12, 64,907.20 and 15,191.88 is: 22,788.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,271.12 : 64,907.20 = 15,191.88 : x
  2. Step 2: Convert to fraction form
    43,271.12/64,907.20 = 15,191.88/x
  3. Step 3: Cross multiply
    43,271.12x = 64,907.20 × 15,191.88
  4. Step 4: Simplify right side
    43,271.12x = 986,062,393.54
  5. Step 5: Solve for x
    x = 986,062,393.54/43,271.12
  6. Step 6: Final answer
    x = 22,788.00

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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.