Home / 20,774.22-28,596.09-18,117.02

Finding the Fourth Proportional to 20,774.22, 28,596.09 and 18,117.02

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Solution

The fourth proportional to 20,774.22, 28,596.09 and 18,117.02 is: 24,938.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,774.22 : 28,596.09 = 18,117.02 : x
  2. Step 2: Convert to fraction form
    20,774.22/28,596.09 = 18,117.02/x
  3. Step 3: Cross multiply
    20,774.22x = 28,596.09 × 18,117.02
  4. Step 4: Simplify right side
    20,774.22x = 518,075,811.12
  5. Step 5: Solve for x
    x = 518,075,811.12/20,774.22
  6. Step 6: Final answer
    x = 24,938.40

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Double scale
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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.