Home / 29,212.31-40,312.99-16,639.49

Finding the Fourth Proportional to 29,212.31, 40,312.99 and 16,639.49

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Solution

The fourth proportional to 29,212.31, 40,312.99 and 16,639.49 is: 22,962.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,212.31 : 40,312.99 = 16,639.49 : x
  2. Step 2: Convert to fraction form
    29,212.31/40,312.99 = 16,639.49/x
  3. Step 3: Cross multiply
    29,212.31x = 40,312.99 × 16,639.49
  4. Step 4: Simplify right side
    29,212.31x = 670,787,715.56
  5. Step 5: Solve for x
    x = 670,787,715.56/29,212.31
  6. Step 6: Final answer
    x = 22,962.50

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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.