Home / 30,002.74-45,004.10-28,175.91

Finding the Fourth Proportional to 30,002.74, 45,004.10 and 28,175.91

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Solution

The fourth proportional to 30,002.74, 45,004.10 and 28,175.91 is: 42,263.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,002.74 : 45,004.10 = 28,175.91 : x
  2. Step 2: Convert to fraction form
    30,002.74/45,004.10 = 28,175.91/x
  3. Step 3: Cross multiply
    30,002.74x = 45,004.10 × 28,175.91
  4. Step 4: Simplify right side
    30,002.74x = 1,268,031,421.06
  5. Step 5: Solve for x
    x = 1,268,031,421.06/30,002.74
  6. Step 6: Final answer
    x = 42,263.86

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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.