Home / 26,639.76-36,760.88-15,309.28

Finding the Fourth Proportional to 26,639.76, 36,760.88 and 15,309.28

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Solution

The fourth proportional to 26,639.76, 36,760.88 and 15,309.28 is: 21,125.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,639.76 : 36,760.88 = 15,309.28 : x
  2. Step 2: Convert to fraction form
    26,639.76/36,760.88 = 15,309.28/x
  3. Step 3: Cross multiply
    26,639.76x = 36,760.88 × 15,309.28
  4. Step 4: Simplify right side
    26,639.76x = 562,782,551.34
  5. Step 5: Solve for x
    x = 562,782,551.34/26,639.76
  6. Step 6: Final answer
    x = 21,125.66

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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.