Home / 19,725.12-29,543.04-15,307.20

Finding the Fourth Proportional to 19,725.12, 29,543.04 and 15,307.20

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Solution

The fourth proportional to 19,725.12, 29,543.04 and 15,307.20 is: 22,926.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,725.12 : 29,543.04 = 15,307.20 : x
  2. Step 2: Convert to fraction form
    19,725.12/29,543.04 = 15,307.20/x
  3. Step 3: Cross multiply
    19,725.12x = 29,543.04 × 15,307.20
  4. Step 4: Simplify right side
    19,725.12x = 452,221,221.89
  5. Step 5: Solve for x
    x = 452,221,221.89/19,725.12
  6. Step 6: Final answer
    x = 22,926.16

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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.