Home / 34,655.30-47,831.72-21,900.36

Finding the Fourth Proportional to 34,655.30, 47,831.72 and 21,900.36

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Solution

The fourth proportional to 34,655.30, 47,831.72 and 21,900.36 is: 30,227.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,655.30 : 47,831.72 = 21,900.36 : x
  2. Step 2: Convert to fraction form
    34,655.30/47,831.72 = 21,900.36/x
  3. Step 3: Cross multiply
    34,655.30x = 47,831.72 × 21,900.36
  4. Step 4: Simplify right side
    34,655.30x = 1,047,531,887.42
  5. Step 5: Solve for x
    x = 1,047,531,887.42/34,655.30
  6. Step 6: Final answer
    x = 30,227.18

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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.