Home / 22,768.40-31,399.91-14,271.38

Finding the Fourth Proportional to 22,768.40, 31,399.91 and 14,271.38

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Solution

The fourth proportional to 22,768.40, 31,399.91 and 14,271.38 is: 19,681.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,768.40 : 31,399.91 = 14,271.38 : x
  2. Step 2: Convert to fraction form
    22,768.40/31,399.91 = 14,271.38/x
  3. Step 3: Cross multiply
    22,768.40x = 31,399.91 × 14,271.38
  4. Step 4: Simplify right side
    22,768.40x = 448,119,819.22
  5. Step 5: Solve for x
    x = 448,119,819.22/22,768.40
  6. Step 6: Final answer
    x = 19,681.66

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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.