Home / 15,031.04-20,729.60-9,995.52

Finding the Fourth Proportional to 15,031.04, 20,729.60 and 9,995.52

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Solution

The fourth proportional to 15,031.04, 20,729.60 and 9,995.52 is: 13,785.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,031.04 : 20,729.60 = 9,995.52 : x
  2. Step 2: Convert to fraction form
    15,031.04/20,729.60 = 9,995.52/x
  3. Step 3: Cross multiply
    15,031.04x = 20,729.60 × 9,995.52
  4. Step 4: Simplify right side
    15,031.04x = 207,203,131.39
  5. Step 5: Solve for x
    x = 207,203,131.39/15,031.04
  6. Step 6: Final answer
    x = 13,785.02

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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.