Home / 21,398.64-29,510.84-14,334.60

Finding the Fourth Proportional to 21,398.64, 29,510.84 and 14,334.60

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Solution

The fourth proportional to 21,398.64, 29,510.84 and 14,334.60 is: 19,768.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,398.64 : 29,510.84 = 14,334.60 : x
  2. Step 2: Convert to fraction form
    21,398.64/29,510.84 = 14,334.60/x
  3. Step 3: Cross multiply
    21,398.64x = 29,510.84 × 14,334.60
  4. Step 4: Simplify right side
    21,398.64x = 423,026,087.06
  5. Step 5: Solve for x
    x = 423,026,087.06/21,398.64
  6. Step 6: Final answer
    x = 19,768.83

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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.