Home / 40,131.86-55,381.82-23,135.99

Finding the Fourth Proportional to 40,131.86, 55,381.82 and 23,135.99

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Solution

The fourth proportional to 40,131.86, 55,381.82 and 23,135.99 is: 31,927.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,131.86 : 55,381.82 = 23,135.99 : x
  2. Step 2: Convert to fraction form
    40,131.86/55,381.82 = 23,135.99/x
  3. Step 3: Cross multiply
    40,131.86x = 55,381.82 × 23,135.99
  4. Step 4: Simplify right side
    40,131.86x = 1,281,312,841.11
  5. Step 5: Solve for x
    x = 1,281,312,841.11/40,131.86
  6. Step 6: Final answer
    x = 31,927.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.