Home / 40,955.60-61,433.40-14,661.20

Finding the Fourth Proportional to 40,955.60, 61,433.40 and 14,661.20

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Solution

The fourth proportional to 40,955.60, 61,433.40 and 14,661.20 is: 21,991.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,955.60 : 61,433.40 = 14,661.20 : x
  2. Step 2: Convert to fraction form
    40,955.60/61,433.40 = 14,661.20/x
  3. Step 3: Cross multiply
    40,955.60x = 61,433.40 × 14,661.20
  4. Step 4: Simplify right side
    40,955.60x = 900,687,364.08
  5. Step 5: Solve for x
    x = 900,687,364.08/40,955.60
  6. Step 6: Final answer
    x = 21,991.80

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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.