Home / 28,627.45-39,492.27-19,071.78

Finding the Fourth Proportional to 28,627.45, 39,492.27 and 19,071.78

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Solution

The fourth proportional to 28,627.45, 39,492.27 and 19,071.78 is: 26,309.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,627.45 : 39,492.27 = 19,071.78 : x
  2. Step 2: Convert to fraction form
    28,627.45/39,492.27 = 19,071.78/x
  3. Step 3: Cross multiply
    28,627.45x = 39,492.27 × 19,071.78
  4. Step 4: Simplify right side
    28,627.45x = 753,187,737.04
  5. Step 5: Solve for x
    x = 753,187,737.04/28,627.45
  6. Step 6: Final answer
    x = 26,309.99

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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.