Home / 21,421.98-32,091.12-14,757.30

Finding the Fourth Proportional to 21,421.98, 32,091.12 and 14,757.30

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Solution

The fourth proportional to 21,421.98, 32,091.12 and 14,757.30 is: 22,107.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,421.98 : 32,091.12 = 14,757.30 : x
  2. Step 2: Convert to fraction form
    21,421.98/32,091.12 = 14,757.30/x
  3. Step 3: Cross multiply
    21,421.98x = 32,091.12 × 14,757.30
  4. Step 4: Simplify right side
    21,421.98x = 473,578,285.18
  5. Step 5: Solve for x
    x = 473,578,285.18/21,421.98
  6. Step 6: Final answer
    x = 22,107.12

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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.