Home / 21,070.08-31,582.44-11,199.42

Finding the Fourth Proportional to 21,070.08, 31,582.44 and 11,199.42

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Solution

The fourth proportional to 21,070.08, 31,582.44 and 11,199.42 is: 16,787.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,070.08 : 31,582.44 = 11,199.42 : x
  2. Step 2: Convert to fraction form
    21,070.08/31,582.44 = 11,199.42/x
  3. Step 3: Cross multiply
    21,070.08x = 31,582.44 × 11,199.42
  4. Step 4: Simplify right side
    21,070.08x = 353,705,010.18
  5. Step 5: Solve for x
    x = 353,705,010.18/21,070.08
  6. Step 6: Final answer
    x = 16,787.07

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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.