Home / 30,166.56-45,242.52-12,649.50

Finding the Fourth Proportional to 30,166.56, 45,242.52 and 12,649.50

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Solution

The fourth proportional to 30,166.56, 45,242.52 and 12,649.50 is: 18,971.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,166.56 : 45,242.52 = 12,649.50 : x
  2. Step 2: Convert to fraction form
    30,166.56/45,242.52 = 12,649.50/x
  3. Step 3: Cross multiply
    30,166.56x = 45,242.52 × 12,649.50
  4. Step 4: Simplify right side
    30,166.56x = 572,295,256.74
  5. Step 5: Solve for x
    x = 572,295,256.74/30,166.56
  6. Step 6: Final answer
    x = 18,971.18

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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.