Home / 20,153.06-30,225.65-19,152.88

Finding the Fourth Proportional to 20,153.06, 30,225.65 and 19,152.88

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Solution

The fourth proportional to 20,153.06, 30,225.65 and 19,152.88 is: 28,725.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,153.06 : 30,225.65 = 19,152.88 : x
  2. Step 2: Convert to fraction form
    20,153.06/30,225.65 = 19,152.88/x
  3. Step 3: Cross multiply
    20,153.06x = 30,225.65 × 19,152.88
  4. Step 4: Simplify right side
    20,153.06x = 578,908,096.24
  5. Step 5: Solve for x
    x = 578,908,096.24/20,153.06
  6. Step 6: Final answer
    x = 28,725.57

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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.