Home / 19,688.27-29,511.14-9,699.95

Finding the Fourth Proportional to 19,688.27, 29,511.14 and 9,699.95

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Solution

The fourth proportional to 19,688.27, 29,511.14 and 9,699.95 is: 14,539.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,688.27 : 29,511.14 = 9,699.95 : x
  2. Step 2: Convert to fraction form
    19,688.27/29,511.14 = 9,699.95/x
  3. Step 3: Cross multiply
    19,688.27x = 29,511.14 × 9,699.95
  4. Step 4: Simplify right side
    19,688.27x = 286,256,607.72
  5. Step 5: Solve for x
    x = 286,256,607.72/19,688.27
  6. Step 6: Final answer
    x = 14,539.45

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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.