Home / 28,820.88-39,805.62-19,373.04

Finding the Fourth Proportional to 28,820.88, 39,805.62 and 19,373.04

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Solution

The fourth proportional to 28,820.88, 39,805.62 and 19,373.04 is: 26,756.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,820.88 : 39,805.62 = 19,373.04 : x
  2. Step 2: Convert to fraction form
    28,820.88/39,805.62 = 19,373.04/x
  3. Step 3: Cross multiply
    28,820.88x = 39,805.62 × 19,373.04
  4. Step 4: Simplify right side
    28,820.88x = 771,155,868.48
  5. Step 5: Solve for x
    x = 771,155,868.48/28,820.88
  6. Step 6: Final answer
    x = 26,756.85

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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.