Home / 28,829.76-39,780.32-16,254.24

Finding the Fourth Proportional to 28,829.76, 39,780.32 and 16,254.24

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Solution

The fourth proportional to 28,829.76, 39,780.32 and 16,254.24 is: 22,428.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,829.76 : 39,780.32 = 16,254.24 : x
  2. Step 2: Convert to fraction form
    28,829.76/39,780.32 = 16,254.24/x
  3. Step 3: Cross multiply
    28,829.76x = 39,780.32 × 16,254.24
  4. Step 4: Simplify right side
    28,829.76x = 646,598,868.56
  5. Step 5: Solve for x
    x = 646,598,868.56/28,829.76
  6. Step 6: Final answer
    x = 22,428.17

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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.