Home / 32,921.14-45,430.04-18,778.54

Finding the Fourth Proportional to 32,921.14, 45,430.04 and 18,778.54

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Solution

The fourth proportional to 32,921.14, 45,430.04 and 18,778.54 is: 25,913.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,921.14 : 45,430.04 = 18,778.54 : x
  2. Step 2: Convert to fraction form
    32,921.14/45,430.04 = 18,778.54/x
  3. Step 3: Cross multiply
    32,921.14x = 45,430.04 × 18,778.54
  4. Step 4: Simplify right side
    32,921.14x = 853,109,823.34
  5. Step 5: Solve for x
    x = 853,109,823.34/32,921.14
  6. Step 6: Final answer
    x = 25,913.74

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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.