Home / 19,280.17-28,946.85-13,342.47

Finding the Fourth Proportional to 19,280.17, 28,946.85 and 13,342.47

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Solution

The fourth proportional to 19,280.17, 28,946.85 and 13,342.47 is: 20,032.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,280.17 : 28,946.85 = 13,342.47 : x
  2. Step 2: Convert to fraction form
    19,280.17/28,946.85 = 13,342.47/x
  3. Step 3: Cross multiply
    19,280.17x = 28,946.85 × 13,342.47
  4. Step 4: Simplify right side
    19,280.17x = 386,222,477.72
  5. Step 5: Solve for x
    x = 386,222,477.72/19,280.17
  6. Step 6: Final answer
    x = 20,032.11

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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.