Home / 21,177.23-31,774.21-10,088.87

Finding the Fourth Proportional to 21,177.23, 31,774.21 and 10,088.87

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Solution

The fourth proportional to 21,177.23, 31,774.21 and 10,088.87 is: 15,137.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,177.23 : 31,774.21 = 10,088.87 : x
  2. Step 2: Convert to fraction form
    21,177.23/31,774.21 = 10,088.87/x
  3. Step 3: Cross multiply
    21,177.23x = 31,774.21 × 10,088.87
  4. Step 4: Simplify right side
    21,177.23x = 320,565,689.95
  5. Step 5: Solve for x
    x = 320,565,689.95/21,177.23
  6. Step 6: Final answer
    x = 15,137.28

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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.