Home / 20,726.10-31,079.98-5,931.64

Finding the Fourth Proportional to 20,726.10, 31,079.98 and 5,931.64

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Solution

The fourth proportional to 20,726.10, 31,079.98 and 5,931.64 is: 8,894.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,726.10 : 31,079.98 = 5,931.64 : x
  2. Step 2: Convert to fraction form
    20,726.10/31,079.98 = 5,931.64/x
  3. Step 3: Cross multiply
    20,726.10x = 31,079.98 × 5,931.64
  4. Step 4: Simplify right side
    20,726.10x = 184,355,252.57
  5. Step 5: Solve for x
    x = 184,355,252.57/20,726.10
  6. Step 6: Final answer
    x = 8,894.84

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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.