Home / 40,137.30-60,242.97-20,430.06

Finding the Fourth Proportional to 40,137.30, 60,242.97 and 20,430.06

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Solution

The fourth proportional to 40,137.30, 60,242.97 and 20,430.06 is: 30,663.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,137.30 : 60,242.97 = 20,430.06 : x
  2. Step 2: Convert to fraction form
    40,137.30/60,242.97 = 20,430.06/x
  3. Step 3: Cross multiply
    40,137.30x = 60,242.97 × 20,430.06
  4. Step 4: Simplify right side
    40,137.30x = 1,230,767,491.68
  5. Step 5: Solve for x
    x = 1,230,767,491.68/40,137.30
  6. Step 6: Final answer
    x = 30,663.93

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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.