Home / 19,397.89-29,047.42-12,803.95

Finding the Fourth Proportional to 19,397.89, 29,047.42 and 12,803.95

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Solution

The fourth proportional to 19,397.89, 29,047.42 and 12,803.95 is: 19,173.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,397.89 : 29,047.42 = 12,803.95 : x
  2. Step 2: Convert to fraction form
    19,397.89/29,047.42 = 12,803.95/x
  3. Step 3: Cross multiply
    19,397.89x = 29,047.42 × 12,803.95
  4. Step 4: Simplify right side
    19,397.89x = 371,921,656.70
  5. Step 5: Solve for x
    x = 371,921,656.70/19,397.89
  6. Step 6: Final answer
    x = 19,173.31

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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.