Home / 42,907.24-64,360.87-11,742.49

Finding the Fourth Proportional to 42,907.24, 64,360.87 and 11,742.49

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Solution

The fourth proportional to 42,907.24, 64,360.87 and 11,742.49 is: 17,613.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,907.24 : 64,360.87 = 11,742.49 : x
  2. Step 2: Convert to fraction form
    42,907.24/64,360.87 = 11,742.49/x
  3. Step 3: Cross multiply
    42,907.24x = 64,360.87 × 11,742.49
  4. Step 4: Simplify right side
    42,907.24x = 755,756,682.11
  5. Step 5: Solve for x
    x = 755,756,682.11/42,907.24
  6. Step 6: Final answer
    x = 17,613.73

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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.