Home / 21,088.35-31,651.56-11,235.92

Finding the Fourth Proportional to 21,088.35, 31,651.56 and 11,235.92

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Solution

The fourth proportional to 21,088.35, 31,651.56 and 11,235.92 is: 16,864.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,088.35 : 31,651.56 = 11,235.92 : x
  2. Step 2: Convert to fraction form
    21,088.35/31,651.56 = 11,235.92/x
  3. Step 3: Cross multiply
    21,088.35x = 31,651.56 × 11,235.92
  4. Step 4: Simplify right side
    21,088.35x = 355,634,237.78
  5. Step 5: Solve for x
    x = 355,634,237.78/21,088.35
  6. Step 6: Final answer
    x = 16,864.01

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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.