Home / 30,768.30-42,460.26-16,621.14

Finding the Fourth Proportional to 30,768.30, 42,460.26 and 16,621.14

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Solution

The fourth proportional to 30,768.30, 42,460.26 and 16,621.14 is: 22,937.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,768.30 : 42,460.26 = 16,621.14 : x
  2. Step 2: Convert to fraction form
    30,768.30/42,460.26 = 16,621.14/x
  3. Step 3: Cross multiply
    30,768.30x = 42,460.26 × 16,621.14
  4. Step 4: Simplify right side
    30,768.30x = 705,737,925.90
  5. Step 5: Solve for x
    x = 705,737,925.90/30,768.30
  6. Step 6: Final answer
    x = 22,937.18

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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.