Home / 34,788.96-47,987.40-30,742.81

Finding the Fourth Proportional to 34,788.96, 47,987.40 and 30,742.81

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Solution

The fourth proportional to 34,788.96, 47,987.40 and 30,742.81 is: 42,406.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,788.96 : 47,987.40 = 30,742.81 : x
  2. Step 2: Convert to fraction form
    34,788.96/47,987.40 = 30,742.81/x
  3. Step 3: Cross multiply
    34,788.96x = 47,987.40 × 30,742.81
  4. Step 4: Simplify right side
    34,788.96x = 1,475,267,515.91
  5. Step 5: Solve for x
    x = 1,475,267,515.91/34,788.96
  6. Step 6: Final answer
    x = 42,406.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.