Home / 39,509.14-59,251.38-13,207.78

Finding the Fourth Proportional to 39,509.14, 59,251.38 and 13,207.78

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Solution

The fourth proportional to 39,509.14, 59,251.38 and 13,207.78 is: 19,807.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,509.14 : 59,251.38 = 13,207.78 : x
  2. Step 2: Convert to fraction form
    39,509.14/59,251.38 = 13,207.78/x
  3. Step 3: Cross multiply
    39,509.14x = 59,251.38 × 13,207.78
  4. Step 4: Simplify right side
    39,509.14x = 782,579,191.74
  5. Step 5: Solve for x
    x = 782,579,191.74/39,509.14
  6. Step 6: Final answer
    x = 19,807.55

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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.