Home / 31,388.13-47,075.99-15,576.66

Finding the Fourth Proportional to 31,388.13, 47,075.99 and 15,576.66

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Solution

The fourth proportional to 31,388.13, 47,075.99 and 15,576.66 is: 23,361.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,388.13 : 47,075.99 = 15,576.66 : x
  2. Step 2: Convert to fraction form
    31,388.13/47,075.99 = 15,576.66/x
  3. Step 3: Cross multiply
    31,388.13x = 47,075.99 × 15,576.66
  4. Step 4: Simplify right side
    31,388.13x = 733,286,612.51
  5. Step 5: Solve for x
    x = 733,286,612.51/31,388.13
  6. Step 6: Final answer
    x = 23,361.91

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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.