Home / 38,615.14-53,261.40-35,438.69

Finding the Fourth Proportional to 38,615.14, 53,261.40 and 35,438.69

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Solution

The fourth proportional to 38,615.14, 53,261.40 and 35,438.69 is: 48,880.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,615.14 : 53,261.40 = 35,438.69 : x
  2. Step 2: Convert to fraction form
    38,615.14/53,261.40 = 35,438.69/x
  3. Step 3: Cross multiply
    38,615.14x = 53,261.40 × 35,438.69
  4. Step 4: Simplify right side
    38,615.14x = 1,887,514,243.57
  5. Step 5: Solve for x
    x = 1,887,514,243.57/38,615.14
  6. Step 6: Final answer
    x = 48,880.17

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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.