Home / 21,608.35-29,808.93-14,440.02

Finding the Fourth Proportional to 21,608.35, 29,808.93 and 14,440.02

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Solution

The fourth proportional to 21,608.35, 29,808.93 and 14,440.02 is: 19,920.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,608.35 : 29,808.93 = 14,440.02 : x
  2. Step 2: Convert to fraction form
    21,608.35/29,808.93 = 14,440.02/x
  3. Step 3: Cross multiply
    21,608.35x = 29,808.93 × 14,440.02
  4. Step 4: Simplify right side
    21,608.35x = 430,441,574.20
  5. Step 5: Solve for x
    x = 430,441,574.20/21,608.35
  6. Step 6: Final answer
    x = 19,920.15

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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.