Home / 28,274.76-39,014.10-18,333

Finding the Fourth Proportional to 28,274.76, 39,014.10 and 18,333

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Solution

The fourth proportional to 28,274.76, 39,014.10 and 18,333 is: 25,296.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,274.76 : 39,014.10 = 18,333 : x
  2. Step 2: Convert to fraction form
    28,274.76/39,014.10 = 18,333/x
  3. Step 3: Cross multiply
    28,274.76x = 39,014.10 × 18,333
  4. Step 4: Simplify right side
    28,274.76x = 715,245,495.30
  5. Step 5: Solve for x
    x = 715,245,495.30/28,274.76
  6. Step 6: Final answer
    x = 25,296.25

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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.