Home / 25,309.84-37,969.38-12,666.20

Finding the Fourth Proportional to 25,309.84, 37,969.38 and 12,666.20

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Solution

The fourth proportional to 25,309.84, 37,969.38 and 12,666.20 is: 19,001.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,309.84 : 37,969.38 = 12,666.20 : x
  2. Step 2: Convert to fraction form
    25,309.84/37,969.38 = 12,666.20/x
  3. Step 3: Cross multiply
    25,309.84x = 37,969.38 × 12,666.20
  4. Step 4: Simplify right side
    25,309.84x = 480,927,760.96
  5. Step 5: Solve for x
    x = 480,927,760.96/25,309.84
  6. Step 6: Final answer
    x = 19,001.61

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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.