Home / 31,012.21-42,806.44-23,065.20

Finding the Fourth Proportional to 31,012.21, 42,806.44 and 23,065.20

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Solution

The fourth proportional to 31,012.21, 42,806.44 and 23,065.20 is: 31,837.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,012.21 : 42,806.44 = 23,065.20 : x
  2. Step 2: Convert to fraction form
    31,012.21/42,806.44 = 23,065.20/x
  3. Step 3: Cross multiply
    31,012.21x = 42,806.44 × 23,065.20
  4. Step 4: Simplify right side
    31,012.21x = 987,338,885.86
  5. Step 5: Solve for x
    x = 987,338,885.86/31,012.21
  6. Step 6: Final answer
    x = 31,837.11

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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.