Home / 28,962.54-39,971.68-17,638.68

Finding the Fourth Proportional to 28,962.54, 39,971.68 and 17,638.68

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Solution

The fourth proportional to 28,962.54, 39,971.68 and 17,638.68 is: 24,343.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,962.54 : 39,971.68 = 17,638.68 : x
  2. Step 2: Convert to fraction form
    28,962.54/39,971.68 = 17,638.68/x
  3. Step 3: Cross multiply
    28,962.54x = 39,971.68 × 17,638.68
  4. Step 4: Simplify right side
    28,962.54x = 705,047,478.59
  5. Step 5: Solve for x
    x = 705,047,478.59/28,962.54
  6. Step 6: Final answer
    x = 24,343.42

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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.