Home / 30,254.61-45,381.87-12,495.27

Finding the Fourth Proportional to 30,254.61, 45,381.87 and 12,495.27

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Solution

The fourth proportional to 30,254.61, 45,381.87 and 12,495.27 is: 18,742.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,254.61 : 45,381.87 = 12,495.27 : x
  2. Step 2: Convert to fraction form
    30,254.61/45,381.87 = 12,495.27/x
  3. Step 3: Cross multiply
    30,254.61x = 45,381.87 × 12,495.27
  4. Step 4: Simplify right side
    30,254.61x = 567,058,718.75
  5. Step 5: Solve for x
    x = 567,058,718.75/30,254.61
  6. Step 6: Final answer
    x = 18,742.89

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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.