Home / 21,775.16-30,048.87-12,343.52

Finding the Fourth Proportional to 21,775.16, 30,048.87 and 12,343.52

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Solution

The fourth proportional to 21,775.16, 30,048.87 and 12,343.52 is: 17,033.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,775.16 : 30,048.87 = 12,343.52 : x
  2. Step 2: Convert to fraction form
    21,775.16/30,048.87 = 12,343.52/x
  3. Step 3: Cross multiply
    21,775.16x = 30,048.87 × 12,343.52
  4. Step 4: Simplify right side
    21,775.16x = 370,908,902.94
  5. Step 5: Solve for x
    x = 370,908,902.94/21,775.16
  6. Step 6: Final answer
    x = 17,033.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.