Home / 30,000.57-45,029.10-15,220.09

Finding the Fourth Proportional to 30,000.57, 45,029.10 and 15,220.09

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Solution

The fourth proportional to 30,000.57, 45,029.10 and 15,220.09 is: 22,844.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,000.57 : 45,029.10 = 15,220.09 : x
  2. Step 2: Convert to fraction form
    30,000.57/45,029.10 = 15,220.09/x
  3. Step 3: Cross multiply
    30,000.57x = 45,029.10 × 15,220.09
  4. Step 4: Simplify right side
    30,000.57x = 685,346,878.52
  5. Step 5: Solve for x
    x = 685,346,878.52/30,000.57
  6. Step 6: Final answer
    x = 22,844.47

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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.