Home / 21,064.20-29,068.66-11,504.18

Finding the Fourth Proportional to 21,064.20, 29,068.66 and 11,504.18

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Solution

The fourth proportional to 21,064.20, 29,068.66 and 11,504.18 is: 15,875.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,064.20 : 29,068.66 = 11,504.18 : x
  2. Step 2: Convert to fraction form
    21,064.20/29,068.66 = 11,504.18/x
  3. Step 3: Cross multiply
    21,064.20x = 29,068.66 × 11,504.18
  4. Step 4: Simplify right side
    21,064.20x = 334,411,097.00
  5. Step 5: Solve for x
    x = 334,411,097.00/21,064.20
  6. Step 6: Final answer
    x = 15,875.80

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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.