Home / 20,707.08-28,543.50-17,343.96

Finding the Fourth Proportional to 20,707.08, 28,543.50 and 17,343.96

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Solution

The fourth proportional to 20,707.08, 28,543.50 and 17,343.96 is: 23,907.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,707.08 : 28,543.50 = 17,343.96 : x
  2. Step 2: Convert to fraction form
    20,707.08/28,543.50 = 17,343.96/x
  3. Step 3: Cross multiply
    20,707.08x = 28,543.50 × 17,343.96
  4. Step 4: Simplify right side
    20,707.08x = 495,057,322.26
  5. Step 5: Solve for x
    x = 495,057,322.26/20,707.08
  6. Step 6: Final answer
    x = 23,907.64

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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.