Home / 28,960.84-39,966.05-16,214.56

Finding the Fourth Proportional to 28,960.84, 39,966.05 and 16,214.56

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Solution

The fourth proportional to 28,960.84, 39,966.05 and 16,214.56 is: 22,376.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,960.84 : 39,966.05 = 16,214.56 : x
  2. Step 2: Convert to fraction form
    28,960.84/39,966.05 = 16,214.56/x
  3. Step 3: Cross multiply
    28,960.84x = 39,966.05 × 16,214.56
  4. Step 4: Simplify right side
    28,960.84x = 648,031,856.31
  5. Step 5: Solve for x
    x = 648,031,856.31/28,960.84
  6. Step 6: Final answer
    x = 22,376.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.