Home / 21,707.09-32,561.30-7,475.41

Finding the Fourth Proportional to 21,707.09, 32,561.30 and 7,475.41

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Solution

The fourth proportional to 21,707.09, 32,561.30 and 7,475.41 is: 11,213.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,707.09 : 32,561.30 = 7,475.41 : x
  2. Step 2: Convert to fraction form
    21,707.09/32,561.30 = 7,475.41/x
  3. Step 3: Cross multiply
    21,707.09x = 32,561.30 × 7,475.41
  4. Step 4: Simplify right side
    21,707.09x = 243,409,030.26
  5. Step 5: Solve for x
    x = 243,409,030.26/21,707.09
  6. Step 6: Final answer
    x = 11,213.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.