Home / 39,973.21-55,167.10-22,978.18

Finding the Fourth Proportional to 39,973.21, 55,167.10 and 22,978.18

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Solution

The fourth proportional to 39,973.21, 55,167.10 and 22,978.18 is: 31,712.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,973.21 : 55,167.10 = 22,978.18 : x
  2. Step 2: Convert to fraction form
    39,973.21/55,167.10 = 22,978.18/x
  3. Step 3: Cross multiply
    39,973.21x = 55,167.10 × 22,978.18
  4. Step 4: Simplify right side
    39,973.21x = 1,267,639,255.08
  5. Step 5: Solve for x
    x = 1,267,639,255.08/39,973.21
  6. Step 6: Final answer
    x = 31,712.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.