Home / 20,543.79-28,350.81-12,052.01

Finding the Fourth Proportional to 20,543.79, 28,350.81 and 12,052.01

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Solution

The fourth proportional to 20,543.79, 28,350.81 and 12,052.01 is: 16,631.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,543.79 : 28,350.81 = 12,052.01 : x
  2. Step 2: Convert to fraction form
    20,543.79/28,350.81 = 12,052.01/x
  3. Step 3: Cross multiply
    20,543.79x = 28,350.81 × 12,052.01
  4. Step 4: Simplify right side
    20,543.79x = 341,684,157.03
  5. Step 5: Solve for x
    x = 341,684,157.03/20,543.79
  6. Step 6: Final answer
    x = 16,631.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.