Home / 28,004.53-42,012.93-20,586.49

Finding the Fourth Proportional to 28,004.53, 42,012.93 and 20,586.49

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Solution

The fourth proportional to 28,004.53, 42,012.93 and 20,586.49 is: 30,884.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,004.53 : 42,012.93 = 20,586.49 : x
  2. Step 2: Convert to fraction form
    28,004.53/42,012.93 = 20,586.49/x
  3. Step 3: Cross multiply
    28,004.53x = 42,012.93 × 20,586.49
  4. Step 4: Simplify right side
    28,004.53x = 864,898,763.32
  5. Step 5: Solve for x
    x = 864,898,763.32/28,004.53
  6. Step 6: Final answer
    x = 30,884.24

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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.