Home / 21,518.79-32,248.45-12,036.09

Finding the Fourth Proportional to 21,518.79, 32,248.45 and 12,036.09

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Solution

The fourth proportional to 21,518.79, 32,248.45 and 12,036.09 is: 18,037.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,518.79 : 32,248.45 = 12,036.09 : x
  2. Step 2: Convert to fraction form
    21,518.79/32,248.45 = 12,036.09/x
  3. Step 3: Cross multiply
    21,518.79x = 32,248.45 × 12,036.09
  4. Step 4: Simplify right side
    21,518.79x = 388,145,416.39
  5. Step 5: Solve for x
    x = 388,145,416.39/21,518.79
  6. Step 6: Final answer
    x = 18,037.51

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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.