Home / 40,070.02-55,294.94-21,920.46

Finding the Fourth Proportional to 40,070.02, 55,294.94 and 21,920.46

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Solution

The fourth proportional to 40,070.02, 55,294.94 and 21,920.46 is: 30,249.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,070.02 : 55,294.94 = 21,920.46 : x
  2. Step 2: Convert to fraction form
    40,070.02/55,294.94 = 21,920.46/x
  3. Step 3: Cross multiply
    40,070.02x = 55,294.94 × 21,920.46
  4. Step 4: Simplify right side
    40,070.02x = 1,212,090,520.47
  5. Step 5: Solve for x
    x = 1,212,090,520.47/40,070.02
  6. Step 6: Final answer
    x = 30,249.31

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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.