Home / 40,019.18-60,031.80-11,937.03

Finding the Fourth Proportional to 40,019.18, 60,031.80 and 11,937.03

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Solution

The fourth proportional to 40,019.18, 60,031.80 and 11,937.03 is: 17,906.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,019.18 : 60,031.80 = 11,937.03 : x
  2. Step 2: Convert to fraction form
    40,019.18/60,031.80 = 11,937.03/x
  3. Step 3: Cross multiply
    40,019.18x = 60,031.80 × 11,937.03
  4. Step 4: Simplify right side
    40,019.18x = 716,601,397.55
  5. Step 5: Solve for x
    x = 716,601,397.55/40,019.18
  6. Step 6: Final answer
    x = 17,906.45

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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.