Home / 21,000.98-28,954.45-17,210.18

Finding the Fourth Proportional to 21,000.98, 28,954.45 and 17,210.18

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Solution

The fourth proportional to 21,000.98, 28,954.45 and 17,210.18 is: 23,728.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,000.98 : 28,954.45 = 17,210.18 : x
  2. Step 2: Convert to fraction form
    21,000.98/28,954.45 = 17,210.18/x
  3. Step 3: Cross multiply
    21,000.98x = 28,954.45 × 17,210.18
  4. Step 4: Simplify right side
    21,000.98x = 498,311,296.30
  5. Step 5: Solve for x
    x = 498,311,296.30/21,000.98
  6. Step 6: Final answer
    x = 23,728.00

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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.