Home / 37,982.70-52,416.23-20,987.42

Finding the Fourth Proportional to 37,982.70, 52,416.23 and 20,987.42

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Solution

The fourth proportional to 37,982.70, 52,416.23 and 20,987.42 is: 28,962.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,982.70 : 52,416.23 = 20,987.42 : x
  2. Step 2: Convert to fraction form
    37,982.70/52,416.23 = 20,987.42/x
  3. Step 3: Cross multiply
    37,982.70x = 52,416.23 × 20,987.42
  4. Step 4: Simplify right side
    37,982.70x = 1,100,081,066.81
  5. Step 5: Solve for x
    x = 1,100,081,066.81/37,982.70
  6. Step 6: Final answer
    x = 28,962.69

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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.