Home / 21,019.01-29,006.24-11,587.50

Finding the Fourth Proportional to 21,019.01, 29,006.24 and 11,587.50

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Solution

The fourth proportional to 21,019.01, 29,006.24 and 11,587.50 is: 15,990.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,019.01 : 29,006.24 = 11,587.50 : x
  2. Step 2: Convert to fraction form
    21,019.01/29,006.24 = 11,587.50/x
  3. Step 3: Cross multiply
    21,019.01x = 29,006.24 × 11,587.50
  4. Step 4: Simplify right side
    21,019.01x = 336,109,748.06
  5. Step 5: Solve for x
    x = 336,109,748.06/21,019.01
  6. Step 6: Final answer
    x = 15,990.75

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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.