Home / 28,527.08-39,365.10-15,780.33

Finding the Fourth Proportional to 28,527.08, 39,365.10 and 15,780.33

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Solution

The fourth proportional to 28,527.08, 39,365.10 and 15,780.33 is: 21,775.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,527.08 : 39,365.10 = 15,780.33 : x
  2. Step 2: Convert to fraction form
    28,527.08/39,365.10 = 15,780.33/x
  3. Step 3: Cross multiply
    28,527.08x = 39,365.10 × 15,780.33
  4. Step 4: Simplify right side
    28,527.08x = 621,194,268.48
  5. Step 5: Solve for x
    x = 621,194,268.48/28,527.08
  6. Step 6: Final answer
    x = 21,775.60

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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.