Home / 39,947.85-59,900.85-11,864.07

Finding the Fourth Proportional to 39,947.85, 59,900.85 and 11,864.07

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Solution

The fourth proportional to 39,947.85, 59,900.85 and 11,864.07 is: 17,789.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,947.85 : 59,900.85 = 11,864.07 : x
  2. Step 2: Convert to fraction form
    39,947.85/59,900.85 = 11,864.07/x
  3. Step 3: Cross multiply
    39,947.85x = 59,900.85 × 11,864.07
  4. Step 4: Simplify right side
    39,947.85x = 710,667,877.46
  5. Step 5: Solve for x
    x = 710,667,877.46/39,947.85
  6. Step 6: Final answer
    x = 17,789.89

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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.