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Finding the Fourth Proportional to 30,607.41, 45,911.40 and 9,260.28

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Solution

The fourth proportional to 30,607.41, 45,911.40 and 9,260.28 is: 13,890.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,607.41 : 45,911.40 = 9,260.28 : x
  2. Step 2: Convert to fraction form
    30,607.41/45,911.40 = 9,260.28/x
  3. Step 3: Cross multiply
    30,607.41x = 45,911.40 × 9,260.28
  4. Step 4: Simplify right side
    30,607.41x = 425,152,419.19
  5. Step 5: Solve for x
    x = 425,152,419.19/30,607.41
  6. Step 6: Final answer
    x = 13,890.51

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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.