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Finding the Fourth Proportional to 21,068.48, 29,074.48 and 11,637.04

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Solution

The fourth proportional to 21,068.48, 29,074.48 and 11,637.04 is: 16,059.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,068.48 : 29,074.48 = 11,637.04 : x
  2. Step 2: Convert to fraction form
    21,068.48/29,074.48 = 11,637.04/x
  3. Step 3: Cross multiply
    21,068.48x = 29,074.48 × 11,637.04
  4. Step 4: Simplify right side
    21,068.48x = 338,340,886.74
  5. Step 5: Solve for x
    x = 338,340,886.74/21,068.48
  6. Step 6: Final answer
    x = 16,059.10

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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.