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Finding the Fourth Proportional to 30,396.93, 41,948.47 and 19,066.90

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Solution

The fourth proportional to 30,396.93, 41,948.47 and 19,066.90 is: 26,312.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,396.93 : 41,948.47 = 19,066.90 : x
  2. Step 2: Convert to fraction form
    30,396.93/41,948.47 = 19,066.90/x
  3. Step 3: Cross multiply
    30,396.93x = 41,948.47 × 19,066.90
  4. Step 4: Simplify right side
    30,396.93x = 799,827,282.64
  5. Step 5: Solve for x
    x = 799,827,282.64/30,396.93
  6. Step 6: Final answer
    x = 26,312.77

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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.