Home / 53,311.99-79,968.08-13,869.04

Finding the Fourth Proportional to 53,311.99, 79,968.08 and 13,869.04

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Solution

The fourth proportional to 53,311.99, 79,968.08 and 13,869.04 is: 20,803.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,311.99 : 79,968.08 = 13,869.04 : x
  2. Step 2: Convert to fraction form
    53,311.99/79,968.08 = 13,869.04/x
  3. Step 3: Cross multiply
    53,311.99x = 79,968.08 × 13,869.04
  4. Step 4: Simplify right side
    53,311.99x = 1,109,080,500.24
  5. Step 5: Solve for x
    x = 1,109,080,500.24/53,311.99
  6. Step 6: Final answer
    x = 20,803.58

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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.