Home / 40,005.40-55,215.14-23,021.08

Finding the Fourth Proportional to 40,005.40, 55,215.14 and 23,021.08

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Solution

The fourth proportional to 40,005.40, 55,215.14 and 23,021.08 is: 31,773.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,005.40 : 55,215.14 = 23,021.08 : x
  2. Step 2: Convert to fraction form
    40,005.40/55,215.14 = 23,021.08/x
  3. Step 3: Cross multiply
    40,005.40x = 55,215.14 × 23,021.08
  4. Step 4: Simplify right side
    40,005.40x = 1,271,112,155.15
  5. Step 5: Solve for x
    x = 1,271,112,155.15/40,005.40
  6. Step 6: Final answer
    x = 31,773.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.