Home / 34,867.86-48,129.98-20,720.53

Finding the Fourth Proportional to 34,867.86, 48,129.98 and 20,720.53

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Solution

The fourth proportional to 34,867.86, 48,129.98 and 20,720.53 is: 28,601.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,867.86 : 48,129.98 = 20,720.53 : x
  2. Step 2: Convert to fraction form
    34,867.86/48,129.98 = 20,720.53/x
  3. Step 3: Cross multiply
    34,867.86x = 48,129.98 × 20,720.53
  4. Step 4: Simplify right side
    34,867.86x = 997,278,767.60
  5. Step 5: Solve for x
    x = 997,278,767.60/34,867.86
  6. Step 6: Final answer
    x = 28,601.67

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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.