Home / 28,699.21-39,604.64-15,952.06

Finding the Fourth Proportional to 28,699.21, 39,604.64 and 15,952.06

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Solution

The fourth proportional to 28,699.21, 39,604.64 and 15,952.06 is: 22,013.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,699.21 : 39,604.64 = 15,952.06 : x
  2. Step 2: Convert to fraction form
    28,699.21/39,604.64 = 15,952.06/x
  3. Step 3: Cross multiply
    28,699.21x = 39,604.64 × 15,952.06
  4. Step 4: Simplify right side
    28,699.21x = 631,775,315.77
  5. Step 5: Solve for x
    x = 631,775,315.77/28,699.21
  6. Step 6: Final answer
    x = 22,013.69

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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.