Home / 31,085.29-42,822.64-25,685.22

Finding the Fourth Proportional to 31,085.29, 42,822.64 and 25,685.22

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Solution

The fourth proportional to 31,085.29, 42,822.64 and 25,685.22 is: 35,383.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,085.29 : 42,822.64 = 25,685.22 : x
  2. Step 2: Convert to fraction form
    31,085.29/42,822.64 = 25,685.22/x
  3. Step 3: Cross multiply
    31,085.29x = 42,822.64 × 25,685.22
  4. Step 4: Simplify right side
    31,085.29x = 1,099,908,929.38
  5. Step 5: Solve for x
    x = 1,099,908,929.38/31,085.29
  6. Step 6: Final answer
    x = 35,383.58

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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.