Home / 31,642.10-43,695.09-25,400.18

Finding the Fourth Proportional to 31,642.10, 43,695.09 and 25,400.18

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Solution

The fourth proportional to 31,642.10, 43,695.09 and 25,400.18 is: 35,075.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,642.10 : 43,695.09 = 25,400.18 : x
  2. Step 2: Convert to fraction form
    31,642.10/43,695.09 = 25,400.18/x
  3. Step 3: Cross multiply
    31,642.10x = 43,695.09 × 25,400.18
  4. Step 4: Simplify right side
    31,642.10x = 1,109,863,151.12
  5. Step 5: Solve for x
    x = 1,109,863,151.12/31,642.10
  6. Step 6: Final answer
    x = 35,075.52

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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.