Home / 31,868.12-47,795.69-30,287.40

Finding the Fourth Proportional to 31,868.12, 47,795.69 and 30,287.40

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Solution

The fourth proportional to 31,868.12, 47,795.69 and 30,287.40 is: 45,424.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,868.12 : 47,795.69 = 30,287.40 : x
  2. Step 2: Convert to fraction form
    31,868.12/47,795.69 = 30,287.40/x
  3. Step 3: Cross multiply
    31,868.12x = 47,795.69 × 30,287.40
  4. Step 4: Simplify right side
    31,868.12x = 1,447,607,029.87
  5. Step 5: Solve for x
    x = 1,447,607,029.87/31,868.12
  6. Step 6: Final answer
    x = 45,424.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.