Home / 21,179.22-31,762.35-14,647.38

Finding the Fourth Proportional to 21,179.22, 31,762.35 and 14,647.38

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Solution

The fourth proportional to 21,179.22, 31,762.35 and 14,647.38 is: 21,966.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,179.22 : 31,762.35 = 14,647.38 : x
  2. Step 2: Convert to fraction form
    21,179.22/31,762.35 = 14,647.38/x
  3. Step 3: Cross multiply
    21,179.22x = 31,762.35 × 14,647.38
  4. Step 4: Simplify right side
    21,179.22x = 465,235,210.14
  5. Step 5: Solve for x
    x = 465,235,210.14/21,179.22
  6. Step 6: Final answer
    x = 21,966.59

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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.