Home / 26,783.76-36,943.20-18,385.68

Finding the Fourth Proportional to 26,783.76, 36,943.20 and 18,385.68

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Solution

The fourth proportional to 26,783.76, 36,943.20 and 18,385.68 is: 25,359.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,783.76 : 36,943.20 = 18,385.68 : x
  2. Step 2: Convert to fraction form
    26,783.76/36,943.20 = 18,385.68/x
  3. Step 3: Cross multiply
    26,783.76x = 36,943.20 × 18,385.68
  4. Step 4: Simplify right side
    26,783.76x = 679,225,853.38
  5. Step 5: Solve for x
    x = 679,225,853.38/26,783.76
  6. Step 6: Final answer
    x = 25,359.62

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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.