Home / 28,242.54-38,970.68-16,909.34

Finding the Fourth Proportional to 28,242.54, 38,970.68 and 16,909.34

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Solution

The fourth proportional to 28,242.54, 38,970.68 and 16,909.34 is: 23,332.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,242.54 : 38,970.68 = 16,909.34 : x
  2. Step 2: Convert to fraction form
    28,242.54/38,970.68 = 16,909.34/x
  3. Step 3: Cross multiply
    28,242.54x = 38,970.68 × 16,909.34
  4. Step 4: Simplify right side
    28,242.54x = 658,968,478.15
  5. Step 5: Solve for x
    x = 658,968,478.15/28,242.54
  6. Step 6: Final answer
    x = 23,332.48

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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.