Home / 19,215.80-28,737.30-16,105.40

Finding the Fourth Proportional to 19,215.80, 28,737.30 and 16,105.40

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Solution

The fourth proportional to 19,215.80, 28,737.30 and 16,105.40 is: 24,085.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,215.80 : 28,737.30 = 16,105.40 : x
  2. Step 2: Convert to fraction form
    19,215.80/28,737.30 = 16,105.40/x
  3. Step 3: Cross multiply
    19,215.80x = 28,737.30 × 16,105.40
  4. Step 4: Simplify right side
    19,215.80x = 462,825,711.42
  5. Step 5: Solve for x
    x = 462,825,711.42/19,215.80
  6. Step 6: Final answer
    x = 24,085.69

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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.