Home / 21,357.72-32,040.36-10,284.48

Finding the Fourth Proportional to 21,357.72, 32,040.36 and 10,284.48

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Solution

The fourth proportional to 21,357.72, 32,040.36 and 10,284.48 is: 15,428.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,357.72 : 32,040.36 = 10,284.48 : x
  2. Step 2: Convert to fraction form
    21,357.72/32,040.36 = 10,284.48/x
  3. Step 3: Cross multiply
    21,357.72x = 32,040.36 × 10,284.48
  4. Step 4: Simplify right side
    21,357.72x = 329,518,441.61
  5. Step 5: Solve for x
    x = 329,518,441.61/21,357.72
  6. Step 6: Final answer
    x = 15,428.54

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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.