Home / 26,756.72-39,972.36-17,319.86

Finding the Fourth Proportional to 26,756.72, 39,972.36 and 17,319.86

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Solution

The fourth proportional to 26,756.72, 39,972.36 and 17,319.86 is: 25,874.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,756.72 : 39,972.36 = 17,319.86 : x
  2. Step 2: Convert to fraction form
    26,756.72/39,972.36 = 17,319.86/x
  3. Step 3: Cross multiply
    26,756.72x = 39,972.36 × 17,319.86
  4. Step 4: Simplify right side
    26,756.72x = 692,315,592.47
  5. Step 5: Solve for x
    x = 692,315,592.47/26,756.72
  6. Step 6: Final answer
    x = 25,874.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.