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Finding the Fourth Proportional to 28,746.96, 43,119.48 and 10,278.48

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Solution

The fourth proportional to 28,746.96, 43,119.48 and 10,278.48 is: 15,417.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,746.96 : 43,119.48 = 10,278.48 : x
  2. Step 2: Convert to fraction form
    28,746.96/43,119.48 = 10,278.48/x
  3. Step 3: Cross multiply
    28,746.96x = 43,119.48 × 10,278.48
  4. Step 4: Simplify right side
    28,746.96x = 443,202,712.79
  5. Step 5: Solve for x
    x = 443,202,712.79/28,746.96
  6. Step 6: Final answer
    x = 15,417.38

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1.5x scale

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.