Home / 31,376.26-43,303.77-18,802.18

Finding the Fourth Proportional to 31,376.26, 43,303.77 and 18,802.18

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Solution

The fourth proportional to 31,376.26, 43,303.77 and 18,802.18 is: 25,949.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,376.26 : 43,303.77 = 18,802.18 : x
  2. Step 2: Convert to fraction form
    31,376.26/43,303.77 = 18,802.18/x
  3. Step 3: Cross multiply
    31,376.26x = 43,303.77 × 18,802.18
  4. Step 4: Simplify right side
    31,376.26x = 814,205,278.22
  5. Step 5: Solve for x
    x = 814,205,278.22/31,376.26
  6. Step 6: Final answer
    x = 25,949.72

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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.