Home / 47,988.16-71,985.84-21,707.68

Finding the Fourth Proportional to 47,988.16, 71,985.84 and 21,707.68

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Solution

The fourth proportional to 47,988.16, 71,985.84 and 21,707.68 is: 32,563.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,988.16 : 71,985.84 = 21,707.68 : x
  2. Step 2: Convert to fraction form
    47,988.16/71,985.84 = 21,707.68/x
  3. Step 3: Cross multiply
    47,988.16x = 71,985.84 × 21,707.68
  4. Step 4: Simplify right side
    47,988.16x = 1,562,645,579.25
  5. Step 5: Solve for x
    x = 1,562,645,579.25/47,988.16
  6. Step 6: Final answer
    x = 32,563.15

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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.