Home / 19,616.70-29,437.65-10,857.90

Finding the Fourth Proportional to 19,616.70, 29,437.65 and 10,857.90

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Solution

The fourth proportional to 19,616.70, 29,437.65 and 10,857.90 is: 16,293.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,616.70 : 29,437.65 = 10,857.90 : x
  2. Step 2: Convert to fraction form
    19,616.70/29,437.65 = 10,857.90/x
  3. Step 3: Cross multiply
    19,616.70x = 29,437.65 × 10,857.90
  4. Step 4: Simplify right side
    19,616.70x = 319,631,059.94
  5. Step 5: Solve for x
    x = 319,631,059.94/19,616.70
  6. Step 6: Final answer
    x = 16,293.82

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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.