Home / 47,523.78-65,572.32-28,400.69

Finding the Fourth Proportional to 47,523.78, 65,572.32 and 28,400.69

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Solution

The fourth proportional to 47,523.78, 65,572.32 and 28,400.69 is: 39,186.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,523.78 : 65,572.32 = 28,400.69 : x
  2. Step 2: Convert to fraction form
    47,523.78/65,572.32 = 28,400.69/x
  3. Step 3: Cross multiply
    47,523.78x = 65,572.32 × 28,400.69
  4. Step 4: Simplify right side
    47,523.78x = 1,862,298,805.04
  5. Step 5: Solve for x
    x = 1,862,298,805.04/47,523.78
  6. Step 6: Final answer
    x = 39,186.67

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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.