Home / 47,430.12-71,095.98-21,147.24

Finding the Fourth Proportional to 47,430.12, 71,095.98 and 21,147.24

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Solution

The fourth proportional to 47,430.12, 71,095.98 and 21,147.24 is: 31,698.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,430.12 : 71,095.98 = 21,147.24 : x
  2. Step 2: Convert to fraction form
    47,430.12/71,095.98 = 21,147.24/x
  3. Step 3: Cross multiply
    47,430.12x = 71,095.98 × 21,147.24
  4. Step 4: Simplify right side
    47,430.12x = 1,503,483,752.10
  5. Step 5: Solve for x
    x = 1,503,483,752.10/47,430.12
  6. Step 6: Final answer
    x = 31,698.92

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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.