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Finding the Fourth Proportional to 39,290, 58,883.16 and 21,768.08

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Solution

The fourth proportional to 39,290, 58,883.16 and 21,768.08 is: 32,623.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,290 : 58,883.16 = 21,768.08 : x
  2. Step 2: Convert to fraction form
    39,290/58,883.16 = 21,768.08/x
  3. Step 3: Cross multiply
    39,290x = 58,883.16 × 21,768.08
  4. Step 4: Simplify right side
    39,290x = 1,281,773,337.53
  5. Step 5: Solve for x
    x = 1,281,773,337.53/39,290
  6. Step 6: Final answer
    x = 32,623.40

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1.5x scale

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.