Home / 47,712.36-71,567.28-12,652.32

Finding the Fourth Proportional to 47,712.36, 71,567.28 and 12,652.32

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Solution

The fourth proportional to 47,712.36, 71,567.28 and 12,652.32 is: 18,978.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,712.36 : 71,567.28 = 12,652.32 : x
  2. Step 2: Convert to fraction form
    47,712.36/71,567.28 = 12,652.32/x
  3. Step 3: Cross multiply
    47,712.36x = 71,567.28 × 12,652.32
  4. Step 4: Simplify right side
    47,712.36x = 905,492,128.09
  5. Step 5: Solve for x
    x = 905,492,128.09/47,712.36
  6. Step 6: Final answer
    x = 18,978.15

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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.