Home / 47,115.74-65,010.45-28,001.36

Finding the Fourth Proportional to 47,115.74, 65,010.45 and 28,001.36

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Solution

The fourth proportional to 47,115.74, 65,010.45 and 28,001.36 is: 38,636.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,115.74 : 65,010.45 = 28,001.36 : x
  2. Step 2: Convert to fraction form
    47,115.74/65,010.45 = 28,001.36/x
  3. Step 3: Cross multiply
    47,115.74x = 65,010.45 × 28,001.36
  4. Step 4: Simplify right side
    47,115.74x = 1,820,381,014.21
  5. Step 5: Solve for x
    x = 1,820,381,014.21/47,115.74
  6. Step 6: Final answer
    x = 38,636.37

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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.