Home / 19,987.65-29,952.32-11,225.07

Finding the Fourth Proportional to 19,987.65, 29,952.32 and 11,225.07

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Solution

The fourth proportional to 19,987.65, 29,952.32 and 11,225.07 is: 16,821.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,987.65 : 29,952.32 = 11,225.07 : x
  2. Step 2: Convert to fraction form
    19,987.65/29,952.32 = 11,225.07/x
  3. Step 3: Cross multiply
    19,987.65x = 29,952.32 × 11,225.07
  4. Step 4: Simplify right side
    19,987.65x = 336,216,832.54
  5. Step 5: Solve for x
    x = 336,216,832.54/19,987.65
  6. Step 6: Final answer
    x = 16,821.23

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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.