Home / 21,034.79-29,028.01-11,603.35

Finding the Fourth Proportional to 21,034.79, 29,028.01 and 11,603.35

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Solution

The fourth proportional to 21,034.79, 29,028.01 and 11,603.35 is: 16,012.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,034.79 : 29,028.01 = 11,603.35 : x
  2. Step 2: Convert to fraction form
    21,034.79/29,028.01 = 11,603.35/x
  3. Step 3: Cross multiply
    21,034.79x = 29,028.01 × 11,603.35
  4. Step 4: Simplify right side
    21,034.79x = 336,822,159.83
  5. Step 5: Solve for x
    x = 336,822,159.83/21,034.79
  6. Step 6: Final answer
    x = 16,012.62

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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.