Home / 21,025.36-31,559.91-15,484.96

Finding the Fourth Proportional to 21,025.36, 31,559.91 and 15,484.96

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Solution

The fourth proportional to 21,025.36, 31,559.91 and 15,484.96 is: 23,243.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,025.36 : 31,559.91 = 15,484.96 : x
  2. Step 2: Convert to fraction form
    21,025.36/31,559.91 = 15,484.96/x
  3. Step 3: Cross multiply
    21,025.36x = 31,559.91 × 15,484.96
  4. Step 4: Simplify right side
    21,025.36x = 488,703,943.95
  5. Step 5: Solve for x
    x = 488,703,943.95/21,025.36
  6. Step 6: Final answer
    x = 23,243.55

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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.