Home / 38,945.60-58,456.80-19,246.40

Finding the Fourth Proportional to 38,945.60, 58,456.80 and 19,246.40

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Solution

The fourth proportional to 38,945.60, 58,456.80 and 19,246.40 is: 28,888.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,945.60 : 58,456.80 = 19,246.40 : x
  2. Step 2: Convert to fraction form
    38,945.60/58,456.80 = 19,246.40/x
  3. Step 3: Cross multiply
    38,945.60x = 58,456.80 × 19,246.40
  4. Step 4: Simplify right side
    38,945.60x = 1,125,082,955.52
  5. Step 5: Solve for x
    x = 1,125,082,955.52/38,945.60
  6. Step 6: Final answer
    x = 28,888.58

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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.