Home / 28,787.28-39,730.23-16,214.46

Finding the Fourth Proportional to 28,787.28, 39,730.23 and 16,214.46

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Solution

The fourth proportional to 28,787.28, 39,730.23 and 16,214.46 is: 22,378.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,787.28 : 39,730.23 = 16,214.46 : x
  2. Step 2: Convert to fraction form
    28,787.28/39,730.23 = 16,214.46/x
  3. Step 3: Cross multiply
    28,787.28x = 39,730.23 × 16,214.46
  4. Step 4: Simplify right side
    28,787.28x = 644,204,225.13
  5. Step 5: Solve for x
    x = 644,204,225.13/28,787.28
  6. Step 6: Final answer
    x = 22,378.09

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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.