Home / 28,461.88-42,663.65-11,831.57

Finding the Fourth Proportional to 28,461.88, 42,663.65 and 11,831.57

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Solution

The fourth proportional to 28,461.88, 42,663.65 and 11,831.57 is: 17,735.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,461.88 : 42,663.65 = 11,831.57 : x
  2. Step 2: Convert to fraction form
    28,461.88/42,663.65 = 11,831.57/x
  3. Step 3: Cross multiply
    28,461.88x = 42,663.65 × 11,831.57
  4. Step 4: Simplify right side
    28,461.88x = 504,777,748.11
  5. Step 5: Solve for x
    x = 504,777,748.11/28,461.88
  6. Step 6: Final answer
    x = 17,735.22

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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.