Home / 30,290.86-45,433.05-10,569.79

Finding the Fourth Proportional to 30,290.86, 45,433.05 and 10,569.79

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Solution

The fourth proportional to 30,290.86, 45,433.05 and 10,569.79 is: 15,853.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,290.86 : 45,433.05 = 10,569.79 : x
  2. Step 2: Convert to fraction form
    30,290.86/45,433.05 = 10,569.79/x
  3. Step 3: Cross multiply
    30,290.86x = 45,433.05 × 10,569.79
  4. Step 4: Simplify right side
    30,290.86x = 480,217,744.71
  5. Step 5: Solve for x
    x = 480,217,744.71/30,290.86
  6. Step 6: Final answer
    x = 15,853.55

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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.