Home / 13,920.32-20,881.19-4,060.34

Finding the Fourth Proportional to 13,920.32, 20,881.19 and 4,060.34

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Solution

The fourth proportional to 13,920.32, 20,881.19 and 4,060.34 is: 6,090.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,920.32 : 20,881.19 = 4,060.34 : x
  2. Step 2: Convert to fraction form
    13,920.32/20,881.19 = 4,060.34/x
  3. Step 3: Cross multiply
    13,920.32x = 20,881.19 × 4,060.34
  4. Step 4: Simplify right side
    13,920.32x = 84,784,832.51
  5. Step 5: Solve for x
    x = 84,784,832.51/13,920.32
  6. Step 6: Final answer
    x = 6,090.72

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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.