Home / 28,316.88-39,077.19-15,741.63

Finding the Fourth Proportional to 28,316.88, 39,077.19 and 15,741.63

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Solution

The fourth proportional to 28,316.88, 39,077.19 and 15,741.63 is: 21,723.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,316.88 : 39,077.19 = 15,741.63 : x
  2. Step 2: Convert to fraction form
    28,316.88/39,077.19 = 15,741.63/x
  3. Step 3: Cross multiply
    28,316.88x = 39,077.19 × 15,741.63
  4. Step 4: Simplify right side
    28,316.88x = 615,138,666.42
  5. Step 5: Solve for x
    x = 615,138,666.42/28,316.88
  6. Step 6: Final answer
    x = 21,723.39

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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.