Home / 26,831.40-37,025.28-15,495.72

Finding the Fourth Proportional to 26,831.40, 37,025.28 and 15,495.72

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Solution

The fourth proportional to 26,831.40, 37,025.28 and 15,495.72 is: 21,382.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,831.40 : 37,025.28 = 15,495.72 : x
  2. Step 2: Convert to fraction form
    26,831.40/37,025.28 = 15,495.72/x
  3. Step 3: Cross multiply
    26,831.40x = 37,025.28 × 15,495.72
  4. Step 4: Simplify right side
    26,831.40x = 573,733,371.80
  5. Step 5: Solve for x
    x = 573,733,371.80/26,831.40
  6. Step 6: Final answer
    x = 21,382.91

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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.