Home / 42,907.22-64,360.83-11,742.47

Finding the Fourth Proportional to 42,907.22, 64,360.83 and 11,742.47

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Solution

The fourth proportional to 42,907.22, 64,360.83 and 11,742.47 is: 17,613.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,907.22 : 64,360.83 = 11,742.47 : x
  2. Step 2: Convert to fraction form
    42,907.22/64,360.83 = 11,742.47/x
  3. Step 3: Cross multiply
    42,907.22x = 64,360.83 × 11,742.47
  4. Step 4: Simplify right side
    42,907.22x = 755,755,012.98
  5. Step 5: Solve for x
    x = 755,755,012.98/42,907.22
  6. Step 6: Final answer
    x = 17,613.70

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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.