Home / 21,063.08-31,610.94-7,927.40

Finding the Fourth Proportional to 21,063.08, 31,610.94 and 7,927.40

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Solution

The fourth proportional to 21,063.08, 31,610.94 and 7,927.40 is: 11,897.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,063.08 : 31,610.94 = 7,927.40 : x
  2. Step 2: Convert to fraction form
    21,063.08/31,610.94 = 7,927.40/x
  3. Step 3: Cross multiply
    21,063.08x = 31,610.94 × 7,927.40
  4. Step 4: Simplify right side
    21,063.08x = 250,592,565.76
  5. Step 5: Solve for x
    x = 250,592,565.76/21,063.08
  6. Step 6: Final answer
    x = 11,897.24

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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.