Home / 35,139.09-52,715.69-12,952.58

Finding the Fourth Proportional to 35,139.09, 52,715.69 and 12,952.58

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Solution

The fourth proportional to 35,139.09, 52,715.69 and 12,952.58 is: 19,431.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,139.09 : 52,715.69 = 12,952.58 : x
  2. Step 2: Convert to fraction form
    35,139.09/52,715.69 = 12,952.58/x
  3. Step 3: Cross multiply
    35,139.09x = 52,715.69 × 12,952.58
  4. Step 4: Simplify right side
    35,139.09x = 682,804,191.98
  5. Step 5: Solve for x
    x = 682,804,191.98/35,139.09
  6. Step 6: Final answer
    x = 19,431.47

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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.