Home / 28,990.77-40,087.79-23,012.06

Finding the Fourth Proportional to 28,990.77, 40,087.79 and 23,012.06

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Solution

The fourth proportional to 28,990.77, 40,087.79 and 23,012.06 is: 31,820.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,990.77 : 40,087.79 = 23,012.06 : x
  2. Step 2: Convert to fraction form
    28,990.77/40,087.79 = 23,012.06/x
  3. Step 3: Cross multiply
    28,990.77x = 40,087.79 × 23,012.06
  4. Step 4: Simplify right side
    28,990.77x = 922,502,628.75
  5. Step 5: Solve for x
    x = 922,502,628.75/28,990.77
  6. Step 6: Final answer
    x = 31,820.56

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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.