Home / 20,117.73-27,774.99-18,862.50

Finding the Fourth Proportional to 20,117.73, 27,774.99 and 18,862.50

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Solution

The fourth proportional to 20,117.73, 27,774.99 and 18,862.50 is: 26,041.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,117.73 : 27,774.99 = 18,862.50 : x
  2. Step 2: Convert to fraction form
    20,117.73/27,774.99 = 18,862.50/x
  3. Step 3: Cross multiply
    20,117.73x = 27,774.99 × 18,862.50
  4. Step 4: Simplify right side
    20,117.73x = 523,905,748.88
  5. Step 5: Solve for x
    x = 523,905,748.88/20,117.73
  6. Step 6: Final answer
    x = 26,041.99

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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.