Home / 28,057.06-38,721.12-16,124.50

Finding the Fourth Proportional to 28,057.06, 38,721.12 and 16,124.50

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Solution

The fourth proportional to 28,057.06, 38,721.12 and 16,124.50 is: 22,253.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,057.06 : 38,721.12 = 16,124.50 : x
  2. Step 2: Convert to fraction form
    28,057.06/38,721.12 = 16,124.50/x
  3. Step 3: Cross multiply
    28,057.06x = 38,721.12 × 16,124.50
  4. Step 4: Simplify right side
    28,057.06x = 624,358,699.44
  5. Step 5: Solve for x
    x = 624,358,699.44/28,057.06
  6. Step 6: Final answer
    x = 22,253.18

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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.