Home / 19,830.24-29,750.36-13,998.24

Finding the Fourth Proportional to 19,830.24, 29,750.36 and 13,998.24

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Solution

The fourth proportional to 19,830.24, 29,750.36 and 13,998.24 is: 21,000.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,830.24 : 29,750.36 = 13,998.24 : x
  2. Step 2: Convert to fraction form
    19,830.24/29,750.36 = 13,998.24/x
  3. Step 3: Cross multiply
    19,830.24x = 29,750.36 × 13,998.24
  4. Step 4: Simplify right side
    19,830.24x = 416,452,679.37
  5. Step 5: Solve for x
    x = 416,452,679.37/19,830.24
  6. Step 6: Final answer
    x = 21,000.89

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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.