Home / 22,674.32-31,285.76-13,720.08

Finding the Fourth Proportional to 22,674.32, 31,285.76 and 13,720.08

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Solution

The fourth proportional to 22,674.32, 31,285.76 and 13,720.08 is: 18,930.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,674.32 : 31,285.76 = 13,720.08 : x
  2. Step 2: Convert to fraction form
    22,674.32/31,285.76 = 13,720.08/x
  3. Step 3: Cross multiply
    22,674.32x = 31,285.76 × 13,720.08
  4. Step 4: Simplify right side
    22,674.32x = 429,243,130.06
  5. Step 5: Solve for x
    x = 429,243,130.06/22,674.32
  6. Step 6: Final answer
    x = 18,930.80

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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.