Home / 19,911.69-29,848.37-7,428.24

Finding the Fourth Proportional to 19,911.69, 29,848.37 and 7,428.24

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Solution

The fourth proportional to 19,911.69, 29,848.37 and 7,428.24 is: 11,135.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,911.69 : 29,848.37 = 7,428.24 : x
  2. Step 2: Convert to fraction form
    19,911.69/29,848.37 = 7,428.24/x
  3. Step 3: Cross multiply
    19,911.69x = 29,848.37 × 7,428.24
  4. Step 4: Simplify right side
    19,911.69x = 221,720,818.83
  5. Step 5: Solve for x
    x = 221,720,818.83/19,911.69
  6. Step 6: Final answer
    x = 11,135.21

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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.