Home / 34,931.54-48,221.76-20,586.86

Finding the Fourth Proportional to 34,931.54, 48,221.76 and 20,586.86

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Solution

The fourth proportional to 34,931.54, 48,221.76 and 20,586.86 is: 28,419.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,931.54 : 48,221.76 = 20,586.86 : x
  2. Step 2: Convert to fraction form
    34,931.54/48,221.76 = 20,586.86/x
  3. Step 3: Cross multiply
    34,931.54x = 48,221.76 × 20,586.86
  4. Step 4: Simplify right side
    34,931.54x = 992,734,622.07
  5. Step 5: Solve for x
    x = 992,734,622.07/34,931.54
  6. Step 6: Final answer
    x = 28,419.43

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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.