Home / 31,418.16-47,142.63-14,777.52

Finding the Fourth Proportional to 31,418.16, 47,142.63 and 14,777.52

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Solution

The fourth proportional to 31,418.16, 47,142.63 and 14,777.52 is: 22,173.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,418.16 : 47,142.63 = 14,777.52 : x
  2. Step 2: Convert to fraction form
    31,418.16/47,142.63 = 14,777.52/x
  3. Step 3: Cross multiply
    31,418.16x = 47,142.63 × 14,777.52
  4. Step 4: Simplify right side
    31,418.16x = 696,651,157.68
  5. Step 5: Solve for x
    x = 696,651,157.68/31,418.16
  6. Step 6: Final answer
    x = 22,173.52

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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.