Home / 28,990.02-40,086.76-23,011.31

Finding the Fourth Proportional to 28,990.02, 40,086.76 and 23,011.31

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Solution

The fourth proportional to 28,990.02, 40,086.76 and 23,011.31 is: 31,819.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,990.02 : 40,086.76 = 23,011.31 : x
  2. Step 2: Convert to fraction form
    28,990.02/40,086.76 = 23,011.31/x
  3. Step 3: Cross multiply
    28,990.02x = 40,086.76 × 23,011.31
  4. Step 4: Simplify right side
    28,990.02x = 922,448,903.94
  5. Step 5: Solve for x
    x = 922,448,903.94/28,990.02
  6. Step 6: Final answer
    x = 31,819.53

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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.