Home / 34,767.74-47,987.42-20,429.25

Finding the Fourth Proportional to 34,767.74, 47,987.42 and 20,429.25

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Solution

The fourth proportional to 34,767.74, 47,987.42 and 20,429.25 is: 28,197.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,767.74 : 47,987.42 = 20,429.25 : x
  2. Step 2: Convert to fraction form
    34,767.74/47,987.42 = 20,429.25/x
  3. Step 3: Cross multiply
    34,767.74x = 47,987.42 × 20,429.25
  4. Step 4: Simplify right side
    34,767.74x = 980,346,897.89
  5. Step 5: Solve for x
    x = 980,346,897.89/34,767.74
  6. Step 6: Final answer
    x = 28,197.03

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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.