Home / 35,720.40-49,295.34-21,570.42

Finding the Fourth Proportional to 35,720.40, 49,295.34 and 21,570.42

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Solution

The fourth proportional to 35,720.40, 49,295.34 and 21,570.42 is: 29,767.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,720.40 : 49,295.34 = 21,570.42 : x
  2. Step 2: Convert to fraction form
    35,720.40/49,295.34 = 21,570.42/x
  3. Step 3: Cross multiply
    35,720.40x = 49,295.34 × 21,570.42
  4. Step 4: Simplify right side
    35,720.40x = 1,063,321,187.84
  5. Step 5: Solve for x
    x = 1,063,321,187.84/35,720.40
  6. Step 6: Final answer
    x = 29,767.90

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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.