Home / 21,176.92-31,757.28-10,075.06

Finding the Fourth Proportional to 21,176.92, 31,757.28 and 10,075.06

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Solution

The fourth proportional to 21,176.92, 31,757.28 and 10,075.06 is: 15,108.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,176.92 : 31,757.28 = 10,075.06 : x
  2. Step 2: Convert to fraction form
    21,176.92/31,757.28 = 10,075.06/x
  3. Step 3: Cross multiply
    21,176.92x = 31,757.28 × 10,075.06
  4. Step 4: Simplify right side
    21,176.92x = 319,956,501.44
  5. Step 5: Solve for x
    x = 319,956,501.44/21,176.92
  6. Step 6: Final answer
    x = 15,108.74

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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.