Home / 35,538.20-53,307.30-20,763.80

Finding the Fourth Proportional to 35,538.20, 53,307.30 and 20,763.80

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Solution

The fourth proportional to 35,538.20, 53,307.30 and 20,763.80 is: 31,145.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,538.20 : 53,307.30 = 20,763.80 : x
  2. Step 2: Convert to fraction form
    35,538.20/53,307.30 = 20,763.80/x
  3. Step 3: Cross multiply
    35,538.20x = 53,307.30 × 20,763.80
  4. Step 4: Simplify right side
    35,538.20x = 1,106,862,115.74
  5. Step 5: Solve for x
    x = 1,106,862,115.74/35,538.20
  6. Step 6: Final answer
    x = 31,145.70

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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.