Home / 19,913.31-29,860.77-7,430.01

Finding the Fourth Proportional to 19,913.31, 29,860.77 and 7,430.01

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Solution

The fourth proportional to 19,913.31, 29,860.77 and 7,430.01 is: 11,141.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,913.31 : 29,860.77 = 7,430.01 : x
  2. Step 2: Convert to fraction form
    19,913.31/29,860.77 = 7,430.01/x
  3. Step 3: Cross multiply
    19,913.31x = 29,860.77 × 7,430.01
  4. Step 4: Simplify right side
    19,913.31x = 221,865,819.71
  5. Step 5: Solve for x
    x = 221,865,819.71/19,913.31
  6. Step 6: Final answer
    x = 11,141.58

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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.