Home / 47,253.08-70,880.16-20,231.78

Finding the Fourth Proportional to 47,253.08, 70,880.16 and 20,231.78

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Solution

The fourth proportional to 47,253.08, 70,880.16 and 20,231.78 is: 30,347.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,253.08 : 70,880.16 = 20,231.78 : x
  2. Step 2: Convert to fraction form
    47,253.08/70,880.16 = 20,231.78/x
  3. Step 3: Cross multiply
    47,253.08x = 70,880.16 × 20,231.78
  4. Step 4: Simplify right side
    47,253.08x = 1,434,031,803.48
  5. Step 5: Solve for x
    x = 1,434,031,803.48/47,253.08
  6. Step 6: Final answer
    x = 30,347.90

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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.