Home / 26,730.81-36,889.83-15,402.08

Finding the Fourth Proportional to 26,730.81, 36,889.83 and 15,402.08

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Solution

The fourth proportional to 26,730.81, 36,889.83 and 15,402.08 is: 21,255.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,730.81 : 36,889.83 = 15,402.08 : x
  2. Step 2: Convert to fraction form
    26,730.81/36,889.83 = 15,402.08/x
  3. Step 3: Cross multiply
    26,730.81x = 36,889.83 × 15,402.08
  4. Step 4: Simplify right side
    26,730.81x = 568,180,205.07
  5. Step 5: Solve for x
    x = 568,180,205.07/26,730.81
  6. Step 6: Final answer
    x = 21,255.63

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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.