Home / 19,387.71-29,043.50-12,793.77

Finding the Fourth Proportional to 19,387.71, 29,043.50 and 12,793.77

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Solution

The fourth proportional to 19,387.71, 29,043.50 and 12,793.77 is: 19,165.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,387.71 : 29,043.50 = 12,793.77 : x
  2. Step 2: Convert to fraction form
    19,387.71/29,043.50 = 12,793.77/x
  3. Step 3: Cross multiply
    19,387.71x = 29,043.50 × 12,793.77
  4. Step 4: Simplify right side
    19,387.71x = 371,575,795.03
  5. Step 5: Solve for x
    x = 371,575,795.03/19,387.71
  6. Step 6: Final answer
    x = 19,165.53

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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.