Home / 35,515.60-53,273.40-21,518.80

Finding the Fourth Proportional to 35,515.60, 53,273.40 and 21,518.80

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Solution

The fourth proportional to 35,515.60, 53,273.40 and 21,518.80 is: 32,278.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,515.60 : 53,273.40 = 21,518.80 : x
  2. Step 2: Convert to fraction form
    35,515.60/53,273.40 = 21,518.80/x
  3. Step 3: Cross multiply
    35,515.60x = 53,273.40 × 21,518.80
  4. Step 4: Simplify right side
    35,515.60x = 1,146,379,639.92
  5. Step 5: Solve for x
    x = 1,146,379,639.92/35,515.60
  6. Step 6: Final answer
    x = 32,278.20

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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.