Home / 19,130.34-28,694.43-5,981.16

Finding the Fourth Proportional to 19,130.34, 28,694.43 and 5,981.16

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Solution

The fourth proportional to 19,130.34, 28,694.43 and 5,981.16 is: 8,971.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,130.34 : 28,694.43 = 5,981.16 : x
  2. Step 2: Convert to fraction form
    19,130.34/28,694.43 = 5,981.16/x
  3. Step 3: Cross multiply
    19,130.34x = 28,694.43 × 5,981.16
  4. Step 4: Simplify right side
    19,130.34x = 171,625,976.94
  5. Step 5: Solve for x
    x = 171,625,976.94/19,130.34
  6. Step 6: Final answer
    x = 8,971.40

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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.