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Finding the Fourth Proportional to 30,437.57, 45,664.76 and 12,676.59

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Solution

The fourth proportional to 30,437.57, 45,664.76 and 12,676.59 is: 19,018.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,437.57 : 45,664.76 = 12,676.59 : x
  2. Step 2: Convert to fraction form
    30,437.57/45,664.76 = 12,676.59/x
  3. Step 3: Cross multiply
    30,437.57x = 45,664.76 × 12,676.59
  4. Step 4: Simplify right side
    30,437.57x = 578,873,471.66
  5. Step 5: Solve for x
    x = 578,873,471.66/30,437.57
  6. Step 6: Final answer
    x = 19,018.38

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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.