Home / 19,960.08-29,947.52-9,969.20

Finding the Fourth Proportional to 19,960.08, 29,947.52 and 9,969.20

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Solution

The fourth proportional to 19,960.08, 29,947.52 and 9,969.20 is: 14,957.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,960.08 : 29,947.52 = 9,969.20 : x
  2. Step 2: Convert to fraction form
    19,960.08/29,947.52 = 9,969.20/x
  3. Step 3: Cross multiply
    19,960.08x = 29,947.52 × 9,969.20
  4. Step 4: Simplify right side
    19,960.08x = 298,552,816.38
  5. Step 5: Solve for x
    x = 298,552,816.38/19,960.08
  6. Step 6: Final answer
    x = 14,957.50

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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.