Home / 20,341.68-28,050.12-15,047.52

Finding the Fourth Proportional to 20,341.68, 28,050.12 and 15,047.52

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Solution

The fourth proportional to 20,341.68, 28,050.12 and 15,047.52 is: 20,749.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,341.68 : 28,050.12 = 15,047.52 : x
  2. Step 2: Convert to fraction form
    20,341.68/28,050.12 = 15,047.52/x
  3. Step 3: Cross multiply
    20,341.68x = 28,050.12 × 15,047.52
  4. Step 4: Simplify right side
    20,341.68x = 422,084,741.70
  5. Step 5: Solve for x
    x = 422,084,741.70/20,341.68
  6. Step 6: Final answer
    x = 20,749.75

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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.