Home / 43,637.48-65,454.80-12,472.72

Finding the Fourth Proportional to 43,637.48, 65,454.80 and 12,472.72

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Solution

The fourth proportional to 43,637.48, 65,454.80 and 12,472.72 is: 18,708.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,637.48 : 65,454.80 = 12,472.72 : x
  2. Step 2: Convert to fraction form
    43,637.48/65,454.80 = 12,472.72/x
  3. Step 3: Cross multiply
    43,637.48x = 65,454.80 × 12,472.72
  4. Step 4: Simplify right side
    43,637.48x = 816,399,393.06
  5. Step 5: Solve for x
    x = 816,399,393.06/43,637.48
  6. Step 6: Final answer
    x = 18,708.67

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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.