Home / 47,713.12-71,569.69-12,655.52

Finding the Fourth Proportional to 47,713.12, 71,569.69 and 12,655.52

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Solution

The fourth proportional to 47,713.12, 71,569.69 and 12,655.52 is: 18,983.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,713.12 : 71,569.69 = 12,655.52 : x
  2. Step 2: Convert to fraction form
    47,713.12/71,569.69 = 12,655.52/x
  3. Step 3: Cross multiply
    47,713.12x = 71,569.69 × 12,655.52
  4. Step 4: Simplify right side
    47,713.12x = 905,751,643.19
  5. Step 5: Solve for x
    x = 905,751,643.19/47,713.12
  6. Step 6: Final answer
    x = 18,983.28

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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.