Home / 35,857.35-53,767.80-21,070.80

Finding the Fourth Proportional to 35,857.35, 53,767.80 and 21,070.80

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Solution

The fourth proportional to 35,857.35, 53,767.80 and 21,070.80 is: 31,595.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,857.35 : 53,767.80 = 21,070.80 : x
  2. Step 2: Convert to fraction form
    35,857.35/53,767.80 = 21,070.80/x
  3. Step 3: Cross multiply
    35,857.35x = 53,767.80 × 21,070.80
  4. Step 4: Simplify right side
    35,857.35x = 1,132,930,560.24
  5. Step 5: Solve for x
    x = 1,132,930,560.24/35,857.35
  6. Step 6: Final answer
    x = 31,595.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.