Home / 30,921.14-42,671.16-17,492.10

Finding the Fourth Proportional to 30,921.14, 42,671.16 and 17,492.10

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Solution

The fourth proportional to 30,921.14, 42,671.16 and 17,492.10 is: 24,139.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,921.14 : 42,671.16 = 17,492.10 : x
  2. Step 2: Convert to fraction form
    30,921.14/42,671.16 = 17,492.10/x
  3. Step 3: Cross multiply
    30,921.14x = 42,671.16 × 17,492.10
  4. Step 4: Simplify right side
    30,921.14x = 746,408,197.84
  5. Step 5: Solve for x
    x = 746,408,197.84/30,921.14
  6. Step 6: Final answer
    x = 24,139.09

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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.