Home / 47,619.10-71,438.64-18,036.28

Finding the Fourth Proportional to 47,619.10, 71,438.64 and 18,036.28

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Solution

The fourth proportional to 47,619.10, 71,438.64 and 18,036.28 is: 27,058.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,619.10 : 71,438.64 = 18,036.28 : x
  2. Step 2: Convert to fraction form
    47,619.10/71,438.64 = 18,036.28/x
  3. Step 3: Cross multiply
    47,619.10x = 71,438.64 × 18,036.28
  4. Step 4: Simplify right side
    47,619.10x = 1,288,487,313.86
  5. Step 5: Solve for x
    x = 1,288,487,313.86/47,619.10
  6. Step 6: Final answer
    x = 27,058.20

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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.