Home / 21,606.19-32,403.06-9,129.04

Finding the Fourth Proportional to 21,606.19, 32,403.06 and 9,129.04

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Solution

The fourth proportional to 21,606.19, 32,403.06 and 9,129.04 is: 13,690.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,606.19 : 32,403.06 = 9,129.04 : x
  2. Step 2: Convert to fraction form
    21,606.19/32,403.06 = 9,129.04/x
  3. Step 3: Cross multiply
    21,606.19x = 32,403.06 × 9,129.04
  4. Step 4: Simplify right side
    21,606.19x = 295,808,830.86
  5. Step 5: Solve for x
    x = 295,808,830.86/21,606.19
  6. Step 6: Final answer
    x = 13,690.93

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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.