Home / 31,232.77-43,089.11-19,900.23

Finding the Fourth Proportional to 31,232.77, 43,089.11 and 19,900.23

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Solution

The fourth proportional to 31,232.77, 43,089.11 and 19,900.23 is: 27,454.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,232.77 : 43,089.11 = 19,900.23 : x
  2. Step 2: Convert to fraction form
    31,232.77/43,089.11 = 19,900.23/x
  3. Step 3: Cross multiply
    31,232.77x = 43,089.11 × 19,900.23
  4. Step 4: Simplify right side
    31,232.77x = 857,483,199.50
  5. Step 5: Solve for x
    x = 857,483,199.50/31,232.77
  6. Step 6: Final answer
    x = 27,454.60

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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.