Home / 34,079.80-47,029.08-18,971.68

Finding the Fourth Proportional to 34,079.80, 47,029.08 and 18,971.68

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Solution

The fourth proportional to 34,079.80, 47,029.08 and 18,971.68 is: 26,180.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,079.80 : 47,029.08 = 18,971.68 : x
  2. Step 2: Convert to fraction form
    34,079.80/47,029.08 = 18,971.68/x
  3. Step 3: Cross multiply
    34,079.80x = 47,029.08 × 18,971.68
  4. Step 4: Simplify right side
    34,079.80x = 892,220,656.45
  5. Step 5: Solve for x
    x = 892,220,656.45/34,079.80
  6. Step 6: Final answer
    x = 26,180.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.