Home / 26,783.28-40,142.52-19,336.14

Finding the Fourth Proportional to 26,783.28, 40,142.52 and 19,336.14

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Solution

The fourth proportional to 26,783.28, 40,142.52 and 19,336.14 is: 28,980.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,783.28 : 40,142.52 = 19,336.14 : x
  2. Step 2: Convert to fraction form
    26,783.28/40,142.52 = 19,336.14/x
  3. Step 3: Cross multiply
    26,783.28x = 40,142.52 × 19,336.14
  4. Step 4: Simplify right side
    26,783.28x = 776,201,386.67
  5. Step 5: Solve for x
    x = 776,201,386.67/26,783.28
  6. Step 6: Final answer
    x = 28,980.82

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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.