Home / 20,150.10-30,225.74-9,621.23

Finding the Fourth Proportional to 20,150.10, 30,225.74 and 9,621.23

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Solution

The fourth proportional to 20,150.10, 30,225.74 and 9,621.23 is: 14,432.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,150.10 : 30,225.74 = 9,621.23 : x
  2. Step 2: Convert to fraction form
    20,150.10/30,225.74 = 9,621.23/x
  3. Step 3: Cross multiply
    20,150.10x = 30,225.74 × 9,621.23
  4. Step 4: Simplify right side
    20,150.10x = 290,808,597.23
  5. Step 5: Solve for x
    x = 290,808,597.23/20,150.10
  6. Step 6: Final answer
    x = 14,432.12

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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.