Home / 19,358.42-29,055.45-11,977.30

Finding the Fourth Proportional to 19,358.42, 29,055.45 and 11,977.30

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Solution

The fourth proportional to 19,358.42, 29,055.45 and 11,977.30 is: 17,976.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,358.42 : 29,055.45 = 11,977.30 : x
  2. Step 2: Convert to fraction form
    19,358.42/29,055.45 = 11,977.30/x
  3. Step 3: Cross multiply
    19,358.42x = 29,055.45 × 11,977.30
  4. Step 4: Simplify right side
    19,358.42x = 348,005,841.29
  5. Step 5: Solve for x
    x = 348,005,841.29/19,358.42
  6. Step 6: Final answer
    x = 17,976.98

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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.