Home / 39,969.60-55,159.84-22,979.34

Finding the Fourth Proportional to 39,969.60, 55,159.84 and 22,979.34

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Solution

The fourth proportional to 39,969.60, 55,159.84 and 22,979.34 is: 31,712.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,969.60 : 55,159.84 = 22,979.34 : x
  2. Step 2: Convert to fraction form
    39,969.60/55,159.84 = 22,979.34/x
  3. Step 3: Cross multiply
    39,969.60x = 55,159.84 × 22,979.34
  4. Step 4: Simplify right side
    39,969.60x = 1,267,536,717.71
  5. Step 5: Solve for x
    x = 1,267,536,717.71/39,969.60
  6. Step 6: Final answer
    x = 31,712.52

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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.