Home / 40,416.09-55,770.45-23,421

Finding the Fourth Proportional to 40,416.09, 55,770.45 and 23,421

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Solution

The fourth proportional to 40,416.09, 55,770.45 and 23,421 is: 32,318.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,416.09 : 55,770.45 = 23,421 : x
  2. Step 2: Convert to fraction form
    40,416.09/55,770.45 = 23,421/x
  3. Step 3: Cross multiply
    40,416.09x = 55,770.45 × 23,421
  4. Step 4: Simplify right side
    40,416.09x = 1,306,199,709.45
  5. Step 5: Solve for x
    x = 1,306,199,709.45/40,416.09
  6. Step 6: Final answer
    x = 32,318.80

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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.