Home / 47,430.88-71,146.31-12,370.44

Finding the Fourth Proportional to 47,430.88, 71,146.31 and 12,370.44

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Solution

The fourth proportional to 47,430.88, 71,146.31 and 12,370.44 is: 18,555.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,430.88 : 71,146.31 = 12,370.44 : x
  2. Step 2: Convert to fraction form
    47,430.88/71,146.31 = 12,370.44/x
  3. Step 3: Cross multiply
    47,430.88x = 71,146.31 × 12,370.44
  4. Step 4: Simplify right side
    47,430.88x = 880,111,159.08
  5. Step 5: Solve for x
    x = 880,111,159.08/47,430.88
  6. Step 6: Final answer
    x = 18,555.66

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1.5x scale

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.