Home / 19,898.04-27,468-13,439.16

Finding the Fourth Proportional to 19,898.04, 27,468 and 13,439.16

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Solution

The fourth proportional to 19,898.04, 27,468 and 13,439.16 is: 18,551.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,898.04 : 27,468 = 13,439.16 : x
  2. Step 2: Convert to fraction form
    19,898.04/27,468 = 13,439.16/x
  3. Step 3: Cross multiply
    19,898.04x = 27,468 × 13,439.16
  4. Step 4: Simplify right side
    19,898.04x = 369,146,846.88
  5. Step 5: Solve for x
    x = 369,146,846.88/19,898.04
  6. Step 6: Final answer
    x = 18,551.92

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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.