Home / 16,901.70-25,352.55-13,215.30

Finding the Fourth Proportional to 16,901.70, 25,352.55 and 13,215.30

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Solution

The fourth proportional to 16,901.70, 25,352.55 and 13,215.30 is: 19,822.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,901.70 : 25,352.55 = 13,215.30 : x
  2. Step 2: Convert to fraction form
    16,901.70/25,352.55 = 13,215.30/x
  3. Step 3: Cross multiply
    16,901.70x = 25,352.55 × 13,215.30
  4. Step 4: Simplify right side
    16,901.70x = 335,041,554.02
  5. Step 5: Solve for x
    x = 335,041,554.02/16,901.70
  6. Step 6: Final answer
    x = 19,822.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.