Home / 28,492.85-42,705.14-13,274.90

Finding the Fourth Proportional to 28,492.85, 42,705.14 and 13,274.90

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Solution

The fourth proportional to 28,492.85, 42,705.14 and 13,274.90 is: 19,896.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,492.85 : 42,705.14 = 13,274.90 : x
  2. Step 2: Convert to fraction form
    28,492.85/42,705.14 = 13,274.90/x
  3. Step 3: Cross multiply
    28,492.85x = 42,705.14 × 13,274.90
  4. Step 4: Simplify right side
    28,492.85x = 566,906,462.99
  5. Step 5: Solve for x
    x = 566,906,462.99/28,492.85
  6. Step 6: Final answer
    x = 19,896.45

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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.