Home / 31,888.29-43,821.11-30,424.81

Finding the Fourth Proportional to 31,888.29, 43,821.11 and 30,424.81

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Solution

The fourth proportional to 31,888.29, 43,821.11 and 30,424.81 is: 41,809.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,888.29 : 43,821.11 = 30,424.81 : x
  2. Step 2: Convert to fraction form
    31,888.29/43,821.11 = 30,424.81/x
  3. Step 3: Cross multiply
    31,888.29x = 43,821.11 × 30,424.81
  4. Step 4: Simplify right side
    31,888.29x = 1,333,248,945.74
  5. Step 5: Solve for x
    x = 1,333,248,945.74/31,888.29
  6. Step 6: Final answer
    x = 41,809.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.