Home / 28,748.79-39,673.28-16,173.54

Finding the Fourth Proportional to 28,748.79, 39,673.28 and 16,173.54

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Solution

The fourth proportional to 28,748.79, 39,673.28 and 16,173.54 is: 22,319.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,748.79 : 39,673.28 = 16,173.54 : x
  2. Step 2: Convert to fraction form
    28,748.79/39,673.28 = 16,173.54/x
  3. Step 3: Cross multiply
    28,748.79x = 39,673.28 × 16,173.54
  4. Step 4: Simplify right side
    28,748.79x = 641,657,300.14
  5. Step 5: Solve for x
    x = 641,657,300.14/28,748.79
  6. Step 6: Final answer
    x = 22,319.45

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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.