Home / 28,215.08-38,934.36-16,115.50

Finding the Fourth Proportional to 28,215.08, 38,934.36 and 16,115.50

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Solution

The fourth proportional to 28,215.08, 38,934.36 and 16,115.50 is: 22,237.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,215.08 : 38,934.36 = 16,115.50 : x
  2. Step 2: Convert to fraction form
    28,215.08/38,934.36 = 16,115.50/x
  3. Step 3: Cross multiply
    28,215.08x = 38,934.36 × 16,115.50
  4. Step 4: Simplify right side
    28,215.08x = 627,446,581.24
  5. Step 5: Solve for x
    x = 627,446,581.24/28,215.08
  6. Step 6: Final answer
    x = 22,237.99

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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.