Home / 30,060.79-41,497.65-21,453.53

Finding the Fourth Proportional to 30,060.79, 41,497.65 and 21,453.53

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Solution

The fourth proportional to 30,060.79, 41,497.65 and 21,453.53 is: 29,615.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,060.79 : 41,497.65 = 21,453.53 : x
  2. Step 2: Convert to fraction form
    30,060.79/41,497.65 = 21,453.53/x
  3. Step 3: Cross multiply
    30,060.79x = 41,497.65 × 21,453.53
  4. Step 4: Simplify right side
    30,060.79x = 890,270,871.72
  5. Step 5: Solve for x
    x = 890,270,871.72/30,060.79
  6. Step 6: Final answer
    x = 29,615.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.