Home / 28,327.69-39,092.47-15,407.08

Finding the Fourth Proportional to 28,327.69, 39,092.47 and 15,407.08

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Solution

The fourth proportional to 28,327.69, 39,092.47 and 15,407.08 is: 21,261.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,327.69 : 39,092.47 = 15,407.08 : x
  2. Step 2: Convert to fraction form
    28,327.69/39,092.47 = 15,407.08/x
  3. Step 3: Cross multiply
    28,327.69x = 39,092.47 × 15,407.08
  4. Step 4: Simplify right side
    28,327.69x = 602,300,735.65
  5. Step 5: Solve for x
    x = 602,300,735.65/28,327.69
  6. Step 6: Final answer
    x = 21,261.91

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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.