Home / 40,043.04-55,272.51-28,109.31

Finding the Fourth Proportional to 40,043.04, 55,272.51 and 28,109.31

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Solution

The fourth proportional to 40,043.04, 55,272.51 and 28,109.31 is: 38,800.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,043.04 : 55,272.51 = 28,109.31 : x
  2. Step 2: Convert to fraction form
    40,043.04/55,272.51 = 28,109.31/x
  3. Step 3: Cross multiply
    40,043.04x = 55,272.51 × 28,109.31
  4. Step 4: Simplify right side
    40,043.04x = 1,553,672,118.07
  5. Step 5: Solve for x
    x = 1,553,672,118.07/40,043.04
  6. Step 6: Final answer
    x = 38,800.05

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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.