Home / 30,495.18-45,742.83-20,031.30

Finding the Fourth Proportional to 30,495.18, 45,742.83 and 20,031.30

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Solution

The fourth proportional to 30,495.18, 45,742.83 and 20,031.30 is: 30,046.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,495.18 : 45,742.83 = 20,031.30 : x
  2. Step 2: Convert to fraction form
    30,495.18/45,742.83 = 20,031.30/x
  3. Step 3: Cross multiply
    30,495.18x = 45,742.83 × 20,031.30
  4. Step 4: Simplify right side
    30,495.18x = 916,288,275.46
  5. Step 5: Solve for x
    x = 916,288,275.46/30,495.18
  6. Step 6: Final answer
    x = 30,046.98

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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.