Home / 18,964.08-28,374.84-17,964

Finding the Fourth Proportional to 18,964.08, 28,374.84 and 17,964

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Solution

The fourth proportional to 18,964.08, 28,374.84 and 17,964 is: 26,878.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,964.08 : 28,374.84 = 17,964 : x
  2. Step 2: Convert to fraction form
    18,964.08/28,374.84 = 17,964/x
  3. Step 3: Cross multiply
    18,964.08x = 28,374.84 × 17,964
  4. Step 4: Simplify right side
    18,964.08x = 509,725,625.76
  5. Step 5: Solve for x
    x = 509,725,625.76/18,964.08
  6. Step 6: Final answer
    x = 26,878.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.