Home / 19,828.27-27,355.48-12,658.45

Finding the Fourth Proportional to 19,828.27, 27,355.48 and 12,658.45

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Solution

The fourth proportional to 19,828.27, 27,355.48 and 12,658.45 is: 17,463.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,828.27 : 27,355.48 = 12,658.45 : x
  2. Step 2: Convert to fraction form
    19,828.27/27,355.48 = 12,658.45/x
  3. Step 3: Cross multiply
    19,828.27x = 27,355.48 × 12,658.45
  4. Step 4: Simplify right side
    19,828.27x = 346,277,975.81
  5. Step 5: Solve for x
    x = 346,277,975.81/19,828.27
  6. Step 6: Final answer
    x = 17,463.85

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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.