Home / 19,612.87-29,365.47-13,695.65

Finding the Fourth Proportional to 19,612.87, 29,365.47 and 13,695.65

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Solution

The fourth proportional to 19,612.87, 29,365.47 and 13,695.65 is: 20,505.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,612.87 : 29,365.47 = 13,695.65 : x
  2. Step 2: Convert to fraction form
    19,612.87/29,365.47 = 13,695.65/x
  3. Step 3: Cross multiply
    19,612.87x = 29,365.47 × 13,695.65
  4. Step 4: Simplify right side
    19,612.87x = 402,179,162.50
  5. Step 5: Solve for x
    x = 402,179,162.50/19,612.87
  6. Step 6: Final answer
    x = 20,505.88

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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.