Home / 19,790.92-29,686.38-16,690.85

Finding the Fourth Proportional to 19,790.92, 29,686.38 and 16,690.85

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Solution

The fourth proportional to 19,790.92, 29,686.38 and 16,690.85 is: 25,036.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,790.92 : 29,686.38 = 16,690.85 : x
  2. Step 2: Convert to fraction form
    19,790.92/29,686.38 = 16,690.85/x
  3. Step 3: Cross multiply
    19,790.92x = 29,686.38 × 16,690.85
  4. Step 4: Simplify right side
    19,790.92x = 495,490,683.74
  5. Step 5: Solve for x
    x = 495,490,683.74/19,790.92
  6. Step 6: Final answer
    x = 25,036.27

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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.