Home / 28,655.12-42,977.76-7,595.36

Finding the Fourth Proportional to 28,655.12, 42,977.76 and 7,595.36

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Solution

The fourth proportional to 28,655.12, 42,977.76 and 7,595.36 is: 11,391.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,655.12 : 42,977.76 = 7,595.36 : x
  2. Step 2: Convert to fraction form
    28,655.12/42,977.76 = 7,595.36/x
  3. Step 3: Cross multiply
    28,655.12x = 42,977.76 × 7,595.36
  4. Step 4: Simplify right side
    28,655.12x = 326,431,559.19
  5. Step 5: Solve for x
    x = 326,431,559.19/28,655.12
  6. Step 6: Final answer
    x = 11,391.74

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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.