Home / 19,718.88-29,509.20-15,308.16

Finding the Fourth Proportional to 19,718.88, 29,509.20 and 15,308.16

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Solution

The fourth proportional to 19,718.88, 29,509.20 and 15,308.16 is: 22,908.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,718.88 : 29,509.20 = 15,308.16 : x
  2. Step 2: Convert to fraction form
    19,718.88/29,509.20 = 15,308.16/x
  3. Step 3: Cross multiply
    19,718.88x = 29,509.20 × 15,308.16
  4. Step 4: Simplify right side
    19,718.88x = 451,731,555.07
  5. Step 5: Solve for x
    x = 451,731,555.07/19,718.88
  6. Step 6: Final answer
    x = 22,908.58

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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.