Home / 18,953.20-28,289.42-17,785.84

Finding the Fourth Proportional to 18,953.20, 28,289.42 and 17,785.84

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Solution

The fourth proportional to 18,953.20, 28,289.42 and 17,785.84 is: 26,547.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,953.20 : 28,289.42 = 17,785.84 : x
  2. Step 2: Convert to fraction form
    18,953.20/28,289.42 = 17,785.84/x
  3. Step 3: Cross multiply
    18,953.20x = 28,289.42 × 17,785.84
  4. Step 4: Simplify right side
    18,953.20x = 503,151,097.81
  5. Step 5: Solve for x
    x = 503,151,097.81/18,953.20
  6. Step 6: Final answer
    x = 26,547.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.