Home / 19,135.74-26,401.59-15,144.47

Finding the Fourth Proportional to 19,135.74, 26,401.59 and 15,144.47

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Solution

The fourth proportional to 19,135.74, 26,401.59 and 15,144.47 is: 20,894.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,135.74 : 26,401.59 = 15,144.47 : x
  2. Step 2: Convert to fraction form
    19,135.74/26,401.59 = 15,144.47/x
  3. Step 3: Cross multiply
    19,135.74x = 26,401.59 × 15,144.47
  4. Step 4: Simplify right side
    19,135.74x = 399,837,955.70
  5. Step 5: Solve for x
    x = 399,837,955.70/19,135.74
  6. Step 6: Final answer
    x = 20,894.83

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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.