Home / 21,695.04-32,542.56-11,820.74

Finding the Fourth Proportional to 21,695.04, 32,542.56 and 11,820.74

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Solution

The fourth proportional to 21,695.04, 32,542.56 and 11,820.74 is: 17,731.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,695.04 : 32,542.56 = 11,820.74 : x
  2. Step 2: Convert to fraction form
    21,695.04/32,542.56 = 11,820.74/x
  3. Step 3: Cross multiply
    21,695.04x = 32,542.56 × 11,820.74
  4. Step 4: Simplify right side
    21,695.04x = 384,676,977.98
  5. Step 5: Solve for x
    x = 384,676,977.98/21,695.04
  6. Step 6: Final answer
    x = 17,731.10

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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.