Home / 21,211.65-31,769.02-10,126.14

Finding the Fourth Proportional to 21,211.65, 31,769.02 and 10,126.14

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Solution

The fourth proportional to 21,211.65, 31,769.02 and 10,126.14 is: 15,166.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,211.65 : 31,769.02 = 10,126.14 : x
  2. Step 2: Convert to fraction form
    21,211.65/31,769.02 = 10,126.14/x
  3. Step 3: Cross multiply
    21,211.65x = 31,769.02 × 10,126.14
  4. Step 4: Simplify right side
    21,211.65x = 321,697,544.18
  5. Step 5: Solve for x
    x = 321,697,544.18/21,211.65
  6. Step 6: Final answer
    x = 15,166.08

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1.5x scale

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.