Home / 21,385.19-29,510.36-11,824.52

Finding the Fourth Proportional to 21,385.19, 29,510.36 and 11,824.52

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Solution

The fourth proportional to 21,385.19, 29,510.36 and 11,824.52 is: 16,317.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,385.19 : 29,510.36 = 11,824.52 : x
  2. Step 2: Convert to fraction form
    21,385.19/29,510.36 = 11,824.52/x
  3. Step 3: Cross multiply
    21,385.19x = 29,510.36 × 11,824.52
  4. Step 4: Simplify right side
    21,385.19x = 348,945,842.03
  5. Step 5: Solve for x
    x = 348,945,842.03/21,385.19
  6. Step 6: Final answer
    x = 16,317.17

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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.