Home / 20,877.19-31,320.64-7,026.19

Finding the Fourth Proportional to 20,877.19, 31,320.64 and 7,026.19

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Solution

The fourth proportional to 20,877.19, 31,320.64 and 7,026.19 is: 10,540.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,877.19 : 31,320.64 = 7,026.19 : x
  2. Step 2: Convert to fraction form
    20,877.19/31,320.64 = 7,026.19/x
  3. Step 3: Cross multiply
    20,877.19x = 31,320.64 × 7,026.19
  4. Step 4: Simplify right side
    20,877.19x = 220,064,698.04
  5. Step 5: Solve for x
    x = 220,064,698.04/20,877.19
  6. Step 6: Final answer
    x = 10,540.92

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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.