Home / 28,154.43-38,867.18-16,215.46

Finding the Fourth Proportional to 28,154.43, 38,867.18 and 16,215.46

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Solution

The fourth proportional to 28,154.43, 38,867.18 and 16,215.46 is: 22,385.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,154.43 : 38,867.18 = 16,215.46 : x
  2. Step 2: Convert to fraction form
    28,154.43/38,867.18 = 16,215.46/x
  3. Step 3: Cross multiply
    28,154.43x = 38,867.18 × 16,215.46
  4. Step 4: Simplify right side
    28,154.43x = 630,249,202.60
  5. Step 5: Solve for x
    x = 630,249,202.60/28,154.43
  6. Step 6: Final answer
    x = 22,385.44

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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.