Home / 20,587.74-30,807.78-17,823.90

Finding the Fourth Proportional to 20,587.74, 30,807.78 and 17,823.90

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Solution

The fourth proportional to 20,587.74, 30,807.78 and 17,823.90 is: 26,671.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,587.74 : 30,807.78 = 17,823.90 : x
  2. Step 2: Convert to fraction form
    20,587.74/30,807.78 = 17,823.90/x
  3. Step 3: Cross multiply
    20,587.74x = 30,807.78 × 17,823.90
  4. Step 4: Simplify right side
    20,587.74x = 549,114,789.94
  5. Step 5: Solve for x
    x = 549,114,789.94/20,587.74
  6. Step 6: Final answer
    x = 26,671.93

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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.