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Finding the Fourth Proportional to 30,626.60, 45,939.90 and 10,927.40

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Solution

The fourth proportional to 30,626.60, 45,939.90 and 10,927.40 is: 16,391.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,626.60 : 45,939.90 = 10,927.40 : x
  2. Step 2: Convert to fraction form
    30,626.60/45,939.90 = 10,927.40/x
  3. Step 3: Cross multiply
    30,626.60x = 45,939.90 × 10,927.40
  4. Step 4: Simplify right side
    30,626.60x = 502,003,663.26
  5. Step 5: Solve for x
    x = 502,003,663.26/30,626.60
  6. Step 6: Final answer
    x = 16,391.10

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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.