Home / 21,088.93-29,104.23-11,657.29

Finding the Fourth Proportional to 21,088.93, 29,104.23 and 11,657.29

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Solution

The fourth proportional to 21,088.93, 29,104.23 and 11,657.29 is: 16,087.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,088.93 : 29,104.23 = 11,657.29 : x
  2. Step 2: Convert to fraction form
    21,088.93/29,104.23 = 11,657.29/x
  3. Step 3: Cross multiply
    21,088.93x = 29,104.23 × 11,657.29
  4. Step 4: Simplify right side
    21,088.93x = 339,276,449.34
  5. Step 5: Solve for x
    x = 339,276,449.34/21,088.93
  6. Step 6: Final answer
    x = 16,087.89

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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.