Home / 19,679.64-29,519.36-4,888.56

Finding the Fourth Proportional to 19,679.64, 29,519.36 and 4,888.56

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Solution

The fourth proportional to 19,679.64, 29,519.36 and 4,888.56 is: 7,332.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,679.64 : 29,519.36 = 4,888.56 : x
  2. Step 2: Convert to fraction form
    19,679.64/29,519.36 = 4,888.56/x
  3. Step 3: Cross multiply
    19,679.64x = 29,519.36 × 4,888.56
  4. Step 4: Simplify right side
    19,679.64x = 144,307,138.08
  5. Step 5: Solve for x
    x = 144,307,138.08/19,679.64
  6. Step 6: Final answer
    x = 7,332.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.