Home / 30,106.50-45,159.78-12,566.76

Finding the Fourth Proportional to 30,106.50, 45,159.78 and 12,566.76

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Solution

The fourth proportional to 30,106.50, 45,159.78 and 12,566.76 is: 18,850.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,106.50 : 45,159.78 = 12,566.76 : x
  2. Step 2: Convert to fraction form
    30,106.50/45,159.78 = 12,566.76/x
  3. Step 3: Cross multiply
    30,106.50x = 45,159.78 × 12,566.76
  4. Step 4: Simplify right side
    30,106.50x = 567,512,116.91
  5. Step 5: Solve for x
    x = 567,512,116.91/30,106.50
  6. Step 6: Final answer
    x = 18,850.15

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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.