Home / 21,034.71-29,027.93-11,603.25

Finding the Fourth Proportional to 21,034.71, 29,027.93 and 11,603.25

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Solution

The fourth proportional to 21,034.71, 29,027.93 and 11,603.25 is: 16,012.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,034.71 : 29,027.93 = 11,603.25 : x
  2. Step 2: Convert to fraction form
    21,034.71/29,027.93 = 11,603.25/x
  3. Step 3: Cross multiply
    21,034.71x = 29,027.93 × 11,603.25
  4. Step 4: Simplify right side
    21,034.71x = 336,818,270.76
  5. Step 5: Solve for x
    x = 336,818,270.76/21,034.71
  6. Step 6: Final answer
    x = 16,012.50

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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.