Home / 30,269.34-45,374.76-15,485.22

Finding the Fourth Proportional to 30,269.34, 45,374.76 and 15,485.22

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Solution

The fourth proportional to 30,269.34, 45,374.76 and 15,485.22 is: 23,212.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,269.34 : 45,374.76 = 15,485.22 : x
  2. Step 2: Convert to fraction form
    30,269.34/45,374.76 = 15,485.22/x
  3. Step 3: Cross multiply
    30,269.34x = 45,374.76 × 15,485.22
  4. Step 4: Simplify right side
    30,269.34x = 702,638,141.05
  5. Step 5: Solve for x
    x = 702,638,141.05/30,269.34
  6. Step 6: Final answer
    x = 23,212.87

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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.