Home / 39,870.86-59,788.05-13,568.54

Finding the Fourth Proportional to 39,870.86, 59,788.05 and 13,568.54

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Solution

The fourth proportional to 39,870.86, 59,788.05 and 13,568.54 is: 20,346.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,870.86 : 59,788.05 = 13,568.54 : x
  2. Step 2: Convert to fraction form
    39,870.86/59,788.05 = 13,568.54/x
  3. Step 3: Cross multiply
    39,870.86x = 59,788.05 × 13,568.54
  4. Step 4: Simplify right side
    39,870.86x = 811,236,249.01
  5. Step 5: Solve for x
    x = 811,236,249.01/39,870.86
  6. Step 6: Final answer
    x = 20,346.60

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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.