Home / 19,107.45-26,393.51-15,931.15

Finding the Fourth Proportional to 19,107.45, 26,393.51 and 15,931.15

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Solution

The fourth proportional to 19,107.45, 26,393.51 and 15,931.15 is: 22,006.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,107.45 : 26,393.51 = 15,931.15 : x
  2. Step 2: Convert to fraction form
    19,107.45/26,393.51 = 15,931.15/x
  3. Step 3: Cross multiply
    19,107.45x = 26,393.51 × 15,931.15
  4. Step 4: Simplify right side
    19,107.45x = 420,478,940.68
  5. Step 5: Solve for x
    x = 420,478,940.68/19,107.45
  6. Step 6: Final answer
    x = 22,006.02

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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.