Home / 26,180-36,128.12-15,569.40

Finding the Fourth Proportional to 26,180, 36,128.12 and 15,569.40

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Solution

The fourth proportional to 26,180, 36,128.12 and 15,569.40 is: 21,485.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,180 : 36,128.12 = 15,569.40 : x
  2. Step 2: Convert to fraction form
    26,180/36,128.12 = 15,569.40/x
  3. Step 3: Cross multiply
    26,180x = 36,128.12 × 15,569.40
  4. Step 4: Simplify right side
    26,180x = 562,493,151.53
  5. Step 5: Solve for x
    x = 562,493,151.53/26,180
  6. Step 6: Final answer
    x = 21,485.61

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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.