Home / 21,526.62-29,707.39-13,030.29

Finding the Fourth Proportional to 21,526.62, 29,707.39 and 13,030.29

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Solution

The fourth proportional to 21,526.62, 29,707.39 and 13,030.29 is: 17,982.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,526.62 : 29,707.39 = 13,030.29 : x
  2. Step 2: Convert to fraction form
    21,526.62/29,707.39 = 13,030.29/x
  3. Step 3: Cross multiply
    21,526.62x = 29,707.39 × 13,030.29
  4. Step 4: Simplify right side
    21,526.62x = 387,095,906.84
  5. Step 5: Solve for x
    x = 387,095,906.84/21,526.62
  6. Step 6: Final answer
    x = 17,982.20

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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.