Home / 15,324.48-21,127.20-10,019.52

Finding the Fourth Proportional to 15,324.48, 21,127.20 and 10,019.52

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Solution

The fourth proportional to 15,324.48, 21,127.20 and 10,019.52 is: 13,813.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,324.48 : 21,127.20 = 10,019.52 : x
  2. Step 2: Convert to fraction form
    15,324.48/21,127.20 = 10,019.52/x
  3. Step 3: Cross multiply
    15,324.48x = 21,127.20 × 10,019.52
  4. Step 4: Simplify right side
    15,324.48x = 211,684,402.94
  5. Step 5: Solve for x
    x = 211,684,402.94/15,324.48
  6. Step 6: Final answer
    x = 13,813.48

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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.