Home / 26,831.12-37,026.60-15,500.57

Finding the Fourth Proportional to 26,831.12, 37,026.60 and 15,500.57

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Solution

The fourth proportional to 26,831.12, 37,026.60 and 15,500.57 is: 21,390.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,831.12 : 37,026.60 = 15,500.57 : x
  2. Step 2: Convert to fraction form
    26,831.12/37,026.60 = 15,500.57/x
  3. Step 3: Cross multiply
    26,831.12x = 37,026.60 × 15,500.57
  4. Step 4: Simplify right side
    26,831.12x = 573,933,405.16
  5. Step 5: Solve for x
    x = 573,933,405.16/26,831.12
  6. Step 6: Final answer
    x = 21,390.59

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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.