Home / 19,587.30-29,368.80-11,263.20

Finding the Fourth Proportional to 19,587.30, 29,368.80 and 11,263.20

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Solution

The fourth proportional to 19,587.30, 29,368.80 and 11,263.20 is: 16,887.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,587.30 : 29,368.80 = 11,263.20 : x
  2. Step 2: Convert to fraction form
    19,587.30/29,368.80 = 11,263.20/x
  3. Step 3: Cross multiply
    19,587.30x = 29,368.80 × 11,263.20
  4. Step 4: Simplify right side
    19,587.30x = 330,786,668.16
  5. Step 5: Solve for x
    x = 330,786,668.16/19,587.30
  6. Step 6: Final answer
    x = 16,887.81

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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.