Home / 21,465.18-32,207.04-11,611.40

Finding the Fourth Proportional to 21,465.18, 32,207.04 and 11,611.40

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Solution

The fourth proportional to 21,465.18, 32,207.04 and 11,611.40 is: 17,422.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,465.18 : 32,207.04 = 11,611.40 : x
  2. Step 2: Convert to fraction form
    21,465.18/32,207.04 = 11,611.40/x
  3. Step 3: Cross multiply
    21,465.18x = 32,207.04 × 11,611.40
  4. Step 4: Simplify right side
    21,465.18x = 373,968,663.22
  5. Step 5: Solve for x
    x = 373,968,663.22/21,465.18
  6. Step 6: Final answer
    x = 17,422.11

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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.