Home / 19,765.12-29,641.58-10,400.06

Finding the Fourth Proportional to 19,765.12, 29,641.58 and 10,400.06

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Solution

The fourth proportional to 19,765.12, 29,641.58 and 10,400.06 is: 15,596.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,765.12 : 29,641.58 = 10,400.06 : x
  2. Step 2: Convert to fraction form
    19,765.12/29,641.58 = 10,400.06/x
  3. Step 3: Cross multiply
    19,765.12x = 29,641.58 × 10,400.06
  4. Step 4: Simplify right side
    19,765.12x = 308,274,010.29
  5. Step 5: Solve for x
    x = 308,274,010.29/19,765.12
  6. Step 6: Final answer
    x = 15,596.87

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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.