Home / 28,071.14-42,070.14-11,411.71

Finding the Fourth Proportional to 28,071.14, 42,070.14 and 11,411.71

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Solution

The fourth proportional to 28,071.14, 42,070.14 and 11,411.71 is: 17,102.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,071.14 : 42,070.14 = 11,411.71 : x
  2. Step 2: Convert to fraction form
    28,071.14/42,070.14 = 11,411.71/x
  3. Step 3: Cross multiply
    28,071.14x = 42,070.14 × 11,411.71
  4. Step 4: Simplify right side
    28,071.14x = 480,092,237.34
  5. Step 5: Solve for x
    x = 480,092,237.34/28,071.14
  6. Step 6: Final answer
    x = 17,102.70

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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.