Home / 21,699.64-32,522.10-11,818.36

Finding the Fourth Proportional to 21,699.64, 32,522.10 and 11,818.36

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Solution

The fourth proportional to 21,699.64, 32,522.10 and 11,818.36 is: 17,712.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,699.64 : 32,522.10 = 11,818.36 : x
  2. Step 2: Convert to fraction form
    21,699.64/32,522.10 = 11,818.36/x
  3. Step 3: Cross multiply
    21,699.64x = 32,522.10 × 11,818.36
  4. Step 4: Simplify right side
    21,699.64x = 384,357,885.76
  5. Step 5: Solve for x
    x = 384,357,885.76/21,699.64
  6. Step 6: Final answer
    x = 17,712.64

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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.