Home / 28,829.28-39,780.24-16,254.24

Finding the Fourth Proportional to 28,829.28, 39,780.24 and 16,254.24

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Solution

The fourth proportional to 28,829.28, 39,780.24 and 16,254.24 is: 22,428.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,829.28 : 39,780.24 = 16,254.24 : x
  2. Step 2: Convert to fraction form
    28,829.28/39,780.24 = 16,254.24/x
  3. Step 3: Cross multiply
    28,829.28x = 39,780.24 × 16,254.24
  4. Step 4: Simplify right side
    28,829.28x = 646,597,568.22
  5. Step 5: Solve for x
    x = 646,597,568.22/28,829.28
  6. Step 6: Final answer
    x = 22,428.50

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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.