Home / 19,358.42-26,722.80-13,079.30

Finding the Fourth Proportional to 19,358.42, 26,722.80 and 13,079.30

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Solution

The fourth proportional to 19,358.42, 26,722.80 and 13,079.30 is: 18,054.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,358.42 : 26,722.80 = 13,079.30 : x
  2. Step 2: Convert to fraction form
    19,358.42/26,722.80 = 13,079.30/x
  3. Step 3: Cross multiply
    19,358.42x = 26,722.80 × 13,079.30
  4. Step 4: Simplify right side
    19,358.42x = 349,515,384.43
  5. Step 5: Solve for x
    x = 349,515,384.43/19,358.42
  6. Step 6: Final answer
    x = 18,054.96

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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.