Home / 39,860.28-59,788.20-10,279.56

Finding the Fourth Proportional to 39,860.28, 59,788.20 and 10,279.56

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Solution

The fourth proportional to 39,860.28, 59,788.20 and 10,279.56 is: 15,418.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,860.28 : 59,788.20 = 10,279.56 : x
  2. Step 2: Convert to fraction form
    39,860.28/59,788.20 = 10,279.56/x
  3. Step 3: Cross multiply
    39,860.28x = 59,788.20 × 10,279.56
  4. Step 4: Simplify right side
    39,860.28x = 614,596,389.19
  5. Step 5: Solve for x
    x = 614,596,389.19/39,860.28
  6. Step 6: Final answer
    x = 15,418.77

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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.