Home / 37,987.91-52,423.11-20,993.33

Finding the Fourth Proportional to 37,987.91, 52,423.11 and 20,993.33

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Solution

The fourth proportional to 37,987.91, 52,423.11 and 20,993.33 is: 28,970.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,987.91 : 52,423.11 = 20,993.33 : x
  2. Step 2: Convert to fraction form
    37,987.91/52,423.11 = 20,993.33/x
  3. Step 3: Cross multiply
    37,987.91x = 52,423.11 × 20,993.33
  4. Step 4: Simplify right side
    37,987.91x = 1,100,535,647.86
  5. Step 5: Solve for x
    x = 1,100,535,647.86/37,987.91
  6. Step 6: Final answer
    x = 28,970.68

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Half scale
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Double scale
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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.