Home / 28,707.60-42,984.72-16,851.54

Finding the Fourth Proportional to 28,707.60, 42,984.72 and 16,851.54

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Solution

The fourth proportional to 28,707.60, 42,984.72 and 16,851.54 is: 25,232.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,707.60 : 42,984.72 = 16,851.54 : x
  2. Step 2: Convert to fraction form
    28,707.60/42,984.72 = 16,851.54/x
  3. Step 3: Cross multiply
    28,707.60x = 42,984.72 × 16,851.54
  4. Step 4: Simplify right side
    28,707.60x = 724,358,728.47
  5. Step 5: Solve for x
    x = 724,358,728.47/28,707.60
  6. Step 6: Final answer
    x = 25,232.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.