Home / 26,418.85-36,457-15,807.85

Finding the Fourth Proportional to 26,418.85, 36,457 and 15,807.85

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Solution

The fourth proportional to 26,418.85, 36,457 and 15,807.85 is: 21,814.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,418.85 : 36,457 = 15,807.85 : x
  2. Step 2: Convert to fraction form
    26,418.85/36,457 = 15,807.85/x
  3. Step 3: Cross multiply
    26,418.85x = 36,457 × 15,807.85
  4. Step 4: Simplify right side
    26,418.85x = 576,306,787.45
  5. Step 5: Solve for x
    x = 576,306,787.45/26,418.85
  6. Step 6: Final answer
    x = 21,814.23

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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.