Home / 19,987.29-29,952.32-14,680.64

Finding the Fourth Proportional to 19,987.29, 29,952.32 and 14,680.64

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Solution

The fourth proportional to 19,987.29, 29,952.32 and 14,680.64 is: 21,999.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,987.29 : 29,952.32 = 14,680.64 : x
  2. Step 2: Convert to fraction form
    19,987.29/29,952.32 = 14,680.64/x
  3. Step 3: Cross multiply
    19,987.29x = 29,952.32 × 14,680.64
  4. Step 4: Simplify right side
    19,987.29x = 439,719,228.56
  5. Step 5: Solve for x
    x = 439,719,228.56/19,987.29
  6. Step 6: Final answer
    x = 21,999.94

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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.