Home / 35,641.09-49,179.23-20,530.80

Finding the Fourth Proportional to 35,641.09, 49,179.23 and 20,530.80

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Solution

The fourth proportional to 35,641.09, 49,179.23 and 20,530.80 is: 28,329.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,641.09 : 49,179.23 = 20,530.80 : x
  2. Step 2: Convert to fraction form
    35,641.09/49,179.23 = 20,530.80/x
  3. Step 3: Cross multiply
    35,641.09x = 49,179.23 × 20,530.80
  4. Step 4: Simplify right side
    35,641.09x = 1,009,689,197.89
  5. Step 5: Solve for x
    x = 1,009,689,197.89/35,641.09
  6. Step 6: Final answer
    x = 28,329.35

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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.