Home / 28,567.69-42,851.84-7,791.19

Finding the Fourth Proportional to 28,567.69, 42,851.84 and 7,791.19

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Solution

The fourth proportional to 28,567.69, 42,851.84 and 7,791.19 is: 11,686.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,567.69 : 42,851.84 = 7,791.19 : x
  2. Step 2: Convert to fraction form
    28,567.69/42,851.84 = 7,791.19/x
  3. Step 3: Cross multiply
    28,567.69x = 42,851.84 × 7,791.19
  4. Step 4: Simplify right side
    28,567.69x = 333,866,681.20
  5. Step 5: Solve for x
    x = 333,866,681.20/28,567.69
  6. Step 6: Final answer
    x = 11,686.86

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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.