Home / 21,456.12-32,192.76-9,774.84

Finding the Fourth Proportional to 21,456.12, 32,192.76 and 9,774.84

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Solution

The fourth proportional to 21,456.12, 32,192.76 and 9,774.84 is: 14,666.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,456.12 : 32,192.76 = 9,774.84 : x
  2. Step 2: Convert to fraction form
    21,456.12/32,192.76 = 9,774.84/x
  3. Step 3: Cross multiply
    21,456.12x = 32,192.76 × 9,774.84
  4. Step 4: Simplify right side
    21,456.12x = 314,679,078.16
  5. Step 5: Solve for x
    x = 314,679,078.16/21,456.12
  6. Step 6: Final answer
    x = 14,666.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.