Home / 29,448.81-40,638.63-16,872.75

Finding the Fourth Proportional to 29,448.81, 40,638.63 and 16,872.75

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Solution

The fourth proportional to 29,448.81, 40,638.63 and 16,872.75 is: 23,283.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,448.81 : 40,638.63 = 16,872.75 : x
  2. Step 2: Convert to fraction form
    29,448.81/40,638.63 = 16,872.75/x
  3. Step 3: Cross multiply
    29,448.81x = 40,638.63 × 16,872.75
  4. Step 4: Simplify right side
    29,448.81x = 685,685,444.33
  5. Step 5: Solve for x
    x = 685,685,444.33/29,448.81
  6. Step 6: Final answer
    x = 23,283.98

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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.