Home / 47,005.80-70,492.26-18,918.56

Finding the Fourth Proportional to 47,005.80, 70,492.26 and 18,918.56

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Solution

The fourth proportional to 47,005.80, 70,492.26 and 18,918.56 is: 28,371.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,005.80 : 70,492.26 = 18,918.56 : x
  2. Step 2: Convert to fraction form
    47,005.80/70,492.26 = 18,918.56/x
  3. Step 3: Cross multiply
    47,005.80x = 70,492.26 × 18,918.56
  4. Step 4: Simplify right side
    47,005.80x = 1,333,612,050.35
  5. Step 5: Solve for x
    x = 1,333,612,050.35/47,005.80
  6. Step 6: Final answer
    x = 28,371.22

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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.