Home / 28,990.71-40,029.80-22,265.69

Finding the Fourth Proportional to 28,990.71, 40,029.80 and 22,265.69

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Solution

The fourth proportional to 28,990.71, 40,029.80 and 22,265.69 is: 30,744.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,990.71 : 40,029.80 = 22,265.69 : x
  2. Step 2: Convert to fraction form
    28,990.71/40,029.80 = 22,265.69/x
  3. Step 3: Cross multiply
    28,990.71x = 40,029.80 × 22,265.69
  4. Step 4: Simplify right side
    28,990.71x = 891,290,806.08
  5. Step 5: Solve for x
    x = 891,290,806.08/28,990.71
  6. Step 6: Final answer
    x = 30,744.01

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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.