Home / 28,240-42,426.19-26,644.17

Finding the Fourth Proportional to 28,240, 42,426.19 and 26,644.17

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Solution

The fourth proportional to 28,240, 42,426.19 and 26,644.17 is: 40,028.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,240 : 42,426.19 = 26,644.17 : x
  2. Step 2: Convert to fraction form
    28,240/42,426.19 = 26,644.17/x
  3. Step 3: Cross multiply
    28,240x = 42,426.19 × 26,644.17
  4. Step 4: Simplify right side
    28,240x = 1,130,410,618.81
  5. Step 5: Solve for x
    x = 1,130,410,618.81/28,240
  6. Step 6: Final answer
    x = 40,028.70

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1.5x scale

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.