Home / 30,919.60-42,666.76-17,492.28

Finding the Fourth Proportional to 30,919.60, 42,666.76 and 17,492.28

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Solution

The fourth proportional to 30,919.60, 42,666.76 and 17,492.28 is: 24,138.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,919.60 : 42,666.76 = 17,492.28 : x
  2. Step 2: Convert to fraction form
    30,919.60/42,666.76 = 17,492.28/x
  3. Step 3: Cross multiply
    30,919.60x = 42,666.76 × 17,492.28
  4. Step 4: Simplify right side
    30,919.60x = 746,338,912.61
  5. Step 5: Solve for x
    x = 746,338,912.61/30,919.60
  6. Step 6: Final answer
    x = 24,138.05

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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.