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Finding the Fourth Proportional to 40,392, 60,590.16 and 12,692.16

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Solution

The fourth proportional to 40,392, 60,590.16 and 12,692.16 is: 19,038.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,392 : 60,590.16 = 12,692.16 : x
  2. Step 2: Convert to fraction form
    40,392/60,590.16 = 12,692.16/x
  3. Step 3: Cross multiply
    40,392x = 60,590.16 × 12,692.16
  4. Step 4: Simplify right side
    40,392x = 769,020,005.15
  5. Step 5: Solve for x
    x = 769,020,005.15/40,392
  6. Step 6: Final answer
    x = 19,038.92

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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.