Home / 35,021.12-48,320.52-21,405.68

Finding the Fourth Proportional to 35,021.12, 48,320.52 and 21,405.68

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Solution

The fourth proportional to 35,021.12, 48,320.52 and 21,405.68 is: 29,534.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,021.12 : 48,320.52 = 21,405.68 : x
  2. Step 2: Convert to fraction form
    35,021.12/48,320.52 = 21,405.68/x
  3. Step 3: Cross multiply
    35,021.12x = 48,320.52 × 21,405.68
  4. Step 4: Simplify right side
    35,021.12x = 1,034,333,588.55
  5. Step 5: Solve for x
    x = 1,034,333,588.55/35,021.12
  6. Step 6: Final answer
    x = 29,534.57

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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.