Home / 20,615.25-30,931.56-10,094.55

Finding the Fourth Proportional to 20,615.25, 30,931.56 and 10,094.55

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Solution

The fourth proportional to 20,615.25, 30,931.56 and 10,094.55 is: 15,146.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,615.25 : 30,931.56 = 10,094.55 : x
  2. Step 2: Convert to fraction form
    20,615.25/30,931.56 = 10,094.55/x
  3. Step 3: Cross multiply
    20,615.25x = 30,931.56 × 10,094.55
  4. Step 4: Simplify right side
    20,615.25x = 312,240,179.00
  5. Step 5: Solve for x
    x = 312,240,179.00/20,615.25
  6. Step 6: Final answer
    x = 15,146.08

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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.