Home / 38,478.42-53,096.51-21,481.34

Finding the Fourth Proportional to 38,478.42, 53,096.51 and 21,481.34

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Solution

The fourth proportional to 38,478.42, 53,096.51 and 21,481.34 is: 29,642.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,478.42 : 53,096.51 = 21,481.34 : x
  2. Step 2: Convert to fraction form
    38,478.42/53,096.51 = 21,481.34/x
  3. Step 3: Cross multiply
    38,478.42x = 53,096.51 × 21,481.34
  4. Step 4: Simplify right side
    38,478.42x = 1,140,583,811.23
  5. Step 5: Solve for x
    x = 1,140,583,811.23/38,478.42
  6. Step 6: Final answer
    x = 29,642.17

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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.