Home / 20,020.69-30,038.19-8,926.39

Finding the Fourth Proportional to 20,020.69, 30,038.19 and 8,926.39

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Solution

The fourth proportional to 20,020.69, 30,038.19 and 8,926.39 is: 13,392.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,020.69 : 30,038.19 = 8,926.39 : x
  2. Step 2: Convert to fraction form
    20,020.69/30,038.19 = 8,926.39/x
  3. Step 3: Cross multiply
    20,020.69x = 30,038.19 × 8,926.39
  4. Step 4: Simplify right side
    20,020.69x = 268,132,598.83
  5. Step 5: Solve for x
    x = 268,132,598.83/20,020.69
  6. Step 6: Final answer
    x = 13,392.78

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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.