Home / 19,807.10-27,337.38-12,639.24

Finding the Fourth Proportional to 19,807.10, 27,337.38 and 12,639.24

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Solution

The fourth proportional to 19,807.10, 27,337.38 and 12,639.24 is: 17,444.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,807.10 : 27,337.38 = 12,639.24 : x
  2. Step 2: Convert to fraction form
    19,807.10/27,337.38 = 12,639.24/x
  3. Step 3: Cross multiply
    19,807.10x = 27,337.38 × 12,639.24
  4. Step 4: Simplify right side
    19,807.10x = 345,523,730.49
  5. Step 5: Solve for x
    x = 345,523,730.49/19,807.10
  6. Step 6: Final answer
    x = 17,444.44

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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.