Home / 30,031.19-45,046.77-12,270.23

Finding the Fourth Proportional to 30,031.19, 45,046.77 and 12,270.23

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Solution

The fourth proportional to 30,031.19, 45,046.77 and 12,270.23 is: 18,405.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,031.19 : 45,046.77 = 12,270.23 : x
  2. Step 2: Convert to fraction form
    30,031.19/45,046.77 = 12,270.23/x
  3. Step 3: Cross multiply
    30,031.19x = 45,046.77 × 12,270.23
  4. Step 4: Simplify right side
    30,031.19x = 552,734,228.66
  5. Step 5: Solve for x
    x = 552,734,228.66/30,031.19
  6. Step 6: Final answer
    x = 18,405.34

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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.