Home / 37,831.68-52,210.08-21,921.12

Finding the Fourth Proportional to 37,831.68, 52,210.08 and 21,921.12

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Solution

The fourth proportional to 37,831.68, 52,210.08 and 21,921.12 is: 30,252.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,831.68 : 52,210.08 = 21,921.12 : x
  2. Step 2: Convert to fraction form
    37,831.68/52,210.08 = 21,921.12/x
  3. Step 3: Cross multiply
    37,831.68x = 52,210.08 × 21,921.12
  4. Step 4: Simplify right side
    37,831.68x = 1,144,503,428.89
  5. Step 5: Solve for x
    x = 1,144,503,428.89/37,831.68
  6. Step 6: Final answer
    x = 30,252.51

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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.