Home / 20,001.48-30,001.85-5,971.03

Finding the Fourth Proportional to 20,001.48, 30,001.85 and 5,971.03

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Solution

The fourth proportional to 20,001.48, 30,001.85 and 5,971.03 is: 8,956.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,001.48 : 30,001.85 = 5,971.03 : x
  2. Step 2: Convert to fraction form
    20,001.48/30,001.85 = 5,971.03/x
  3. Step 3: Cross multiply
    20,001.48x = 30,001.85 × 5,971.03
  4. Step 4: Simplify right side
    20,001.48x = 179,141,946.41
  5. Step 5: Solve for x
    x = 179,141,946.41/20,001.48
  6. Step 6: Final answer
    x = 8,956.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.