Home / 28,851.56-39,836.24-18,648.63

Finding the Fourth Proportional to 28,851.56, 39,836.24 and 18,648.63

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Solution

The fourth proportional to 28,851.56, 39,836.24 and 18,648.63 is: 25,748.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,851.56 : 39,836.24 = 18,648.63 : x
  2. Step 2: Convert to fraction form
    28,851.56/39,836.24 = 18,648.63/x
  3. Step 3: Cross multiply
    28,851.56x = 39,836.24 × 18,648.63
  4. Step 4: Simplify right side
    28,851.56x = 742,891,300.35
  5. Step 5: Solve for x
    x = 742,891,300.35/28,851.56
  6. Step 6: Final answer
    x = 25,748.74

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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.