Home / 21,437.12-32,147.78-7,393.55

Finding the Fourth Proportional to 21,437.12, 32,147.78 and 7,393.55

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Solution

The fourth proportional to 21,437.12, 32,147.78 and 7,393.55 is: 11,087.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,437.12 : 32,147.78 = 7,393.55 : x
  2. Step 2: Convert to fraction form
    21,437.12/32,147.78 = 7,393.55/x
  3. Step 3: Cross multiply
    21,437.12x = 32,147.78 × 7,393.55
  4. Step 4: Simplify right side
    21,437.12x = 237,686,058.08
  5. Step 5: Solve for x
    x = 237,686,058.08/21,437.12
  6. Step 6: Final answer
    x = 11,087.59

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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.