Home / 30,156.50-41,618.21-16,730.35

Finding the Fourth Proportional to 30,156.50, 41,618.21 and 16,730.35

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Solution

The fourth proportional to 30,156.50, 41,618.21 and 16,730.35 is: 23,089.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,156.50 : 41,618.21 = 16,730.35 : x
  2. Step 2: Convert to fraction form
    30,156.50/41,618.21 = 16,730.35/x
  3. Step 3: Cross multiply
    30,156.50x = 41,618.21 × 16,730.35
  4. Step 4: Simplify right side
    30,156.50x = 696,287,031.98
  5. Step 5: Solve for x
    x = 696,287,031.98/30,156.50
  6. Step 6: Final answer
    x = 23,089.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.