Home / 19,810.58-29,699.61-9,275.47

Finding the Fourth Proportional to 19,810.58, 29,699.61 and 9,275.47

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Solution

The fourth proportional to 19,810.58, 29,699.61 and 9,275.47 is: 13,905.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,810.58 : 29,699.61 = 9,275.47 : x
  2. Step 2: Convert to fraction form
    19,810.58/29,699.61 = 9,275.47/x
  3. Step 3: Cross multiply
    19,810.58x = 29,699.61 × 9,275.47
  4. Step 4: Simplify right side
    19,810.58x = 275,477,841.57
  5. Step 5: Solve for x
    x = 275,477,841.57/19,810.58
  6. Step 6: Final answer
    x = 13,905.59

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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.