Home / 21,433.86-29,547.18-15,040.26

Finding the Fourth Proportional to 21,433.86, 29,547.18 and 15,040.26

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Solution

The fourth proportional to 21,433.86, 29,547.18 and 15,040.26 is: 20,733.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,433.86 : 29,547.18 = 15,040.26 : x
  2. Step 2: Convert to fraction form
    21,433.86/29,547.18 = 15,040.26/x
  3. Step 3: Cross multiply
    21,433.86x = 29,547.18 × 15,040.26
  4. Step 4: Simplify right side
    21,433.86x = 444,397,269.47
  5. Step 5: Solve for x
    x = 444,397,269.47/21,433.86
  6. Step 6: Final answer
    x = 20,733.42

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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.