Home / 34,655.05-47,831.38-21,900.11

Finding the Fourth Proportional to 34,655.05, 47,831.38 and 21,900.11

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Solution

The fourth proportional to 34,655.05, 47,831.38 and 21,900.11 is: 30,226.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,655.05 : 47,831.38 = 21,900.11 : x
  2. Step 2: Convert to fraction form
    34,655.05/47,831.38 = 21,900.11/x
  3. Step 3: Cross multiply
    34,655.05x = 47,831.38 × 21,900.11
  4. Step 4: Simplify right side
    34,655.05x = 1,047,512,548.28
  5. Step 5: Solve for x
    x = 1,047,512,548.28/34,655.05
  6. Step 6: Final answer
    x = 30,226.84

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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.