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Finding the Fourth Proportional to 30,605.41, 45,908.40 and 9,258.28

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Solution

The fourth proportional to 30,605.41, 45,908.40 and 9,258.28 is: 13,887.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,605.41 : 45,908.40 = 9,258.28 : x
  2. Step 2: Convert to fraction form
    30,605.41/45,908.40 = 9,258.28/x
  3. Step 3: Cross multiply
    30,605.41x = 45,908.40 × 9,258.28
  4. Step 4: Simplify right side
    30,605.41x = 425,032,947.66
  5. Step 5: Solve for x
    x = 425,032,947.66/30,605.41
  6. Step 6: Final answer
    x = 13,887.51

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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.