Home / 30,348.18-45,462.20-14,315.76

Finding the Fourth Proportional to 30,348.18, 45,462.20 and 14,315.76

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Solution

The fourth proportional to 30,348.18, 45,462.20 and 14,315.76 is: 21,445.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,348.18 : 45,462.20 = 14,315.76 : x
  2. Step 2: Convert to fraction form
    30,348.18/45,462.20 = 14,315.76/x
  3. Step 3: Cross multiply
    30,348.18x = 45,462.20 × 14,315.76
  4. Step 4: Simplify right side
    30,348.18x = 650,825,872.69
  5. Step 5: Solve for x
    x = 650,825,872.69/30,348.18
  6. Step 6: Final answer
    x = 21,445.30

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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.