Home / 31,989.65-44,145.74-18,563.63

Finding the Fourth Proportional to 31,989.65, 44,145.74 and 18,563.63

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Solution

The fourth proportional to 31,989.65, 44,145.74 and 18,563.63 is: 25,617.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,989.65 : 44,145.74 = 18,563.63 : x
  2. Step 2: Convert to fraction form
    31,989.65/44,145.74 = 18,563.63/x
  3. Step 3: Cross multiply
    31,989.65x = 44,145.74 × 18,563.63
  4. Step 4: Simplify right side
    31,989.65x = 819,505,009.12
  5. Step 5: Solve for x
    x = 819,505,009.12/31,989.65
  6. Step 6: Final answer
    x = 25,617.82

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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.