Home / 20,281.27-28,007.39-19,176.83

Finding the Fourth Proportional to 20,281.27, 28,007.39 and 19,176.83

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Solution

The fourth proportional to 20,281.27, 28,007.39 and 19,176.83 is: 26,482.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,281.27 : 28,007.39 = 19,176.83 : x
  2. Step 2: Convert to fraction form
    20,281.27/28,007.39 = 19,176.83/x
  3. Step 3: Cross multiply
    20,281.27x = 28,007.39 × 19,176.83
  4. Step 4: Simplify right side
    20,281.27x = 537,092,956.77
  5. Step 5: Solve for x
    x = 537,092,956.77/20,281.27
  6. Step 6: Final answer
    x = 26,482.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.