Home / 15,576.33-21,557.02-15,203.18

Finding the Fourth Proportional to 15,576.33, 21,557.02 and 15,203.18

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Solution

The fourth proportional to 15,576.33, 21,557.02 and 15,203.18 is: 21,040.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,576.33 : 21,557.02 = 15,203.18 : x
  2. Step 2: Convert to fraction form
    15,576.33/21,557.02 = 15,203.18/x
  3. Step 3: Cross multiply
    15,576.33x = 21,557.02 × 15,203.18
  4. Step 4: Simplify right side
    15,576.33x = 327,735,114.32
  5. Step 5: Solve for x
    x = 327,735,114.32/15,576.33
  6. Step 6: Final answer
    x = 21,040.58

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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.