Home / 43,304.12-64,960.33-12,139.28

Finding the Fourth Proportional to 43,304.12, 64,960.33 and 12,139.28

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Solution

The fourth proportional to 43,304.12, 64,960.33 and 12,139.28 is: 18,210.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,304.12 : 64,960.33 = 12,139.28 : x
  2. Step 2: Convert to fraction form
    43,304.12/64,960.33 = 12,139.28/x
  3. Step 3: Cross multiply
    43,304.12x = 64,960.33 × 12,139.28
  4. Step 4: Simplify right side
    43,304.12x = 788,571,634.76
  5. Step 5: Solve for x
    x = 788,571,634.76/43,304.12
  6. Step 6: Final answer
    x = 18,210.08

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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.