Home / 38,612.40-57,918.60-30,836.40

Finding the Fourth Proportional to 38,612.40, 57,918.60 and 30,836.40

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Solution

The fourth proportional to 38,612.40, 57,918.60 and 30,836.40 is: 46,254.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,612.40 : 57,918.60 = 30,836.40 : x
  2. Step 2: Convert to fraction form
    38,612.40/57,918.60 = 30,836.40/x
  3. Step 3: Cross multiply
    38,612.40x = 57,918.60 × 30,836.40
  4. Step 4: Simplify right side
    38,612.40x = 1,786,001,117.04
  5. Step 5: Solve for x
    x = 1,786,001,117.04/38,612.40
  6. Step 6: Final answer
    x = 46,254.60

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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.