Home / 28,069.55-38,742.47-18,511.16

Finding the Fourth Proportional to 28,069.55, 38,742.47 and 18,511.16

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Solution

The fourth proportional to 28,069.55, 38,742.47 and 18,511.16 is: 25,549.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,069.55 : 38,742.47 = 18,511.16 : x
  2. Step 2: Convert to fraction form
    28,069.55/38,742.47 = 18,511.16/x
  3. Step 3: Cross multiply
    28,069.55x = 38,742.47 × 18,511.16
  4. Step 4: Simplify right side
    28,069.55x = 717,167,774.70
  5. Step 5: Solve for x
    x = 717,167,774.70/28,069.55
  6. Step 6: Final answer
    x = 25,549.68

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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.