Home / 19,239.70-26,491.57-16,400.71

Finding the Fourth Proportional to 19,239.70, 26,491.57 and 16,400.71

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Solution

The fourth proportional to 19,239.70, 26,491.57 and 16,400.71 is: 22,582.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,239.70 : 26,491.57 = 16,400.71 : x
  2. Step 2: Convert to fraction form
    19,239.70/26,491.57 = 16,400.71/x
  3. Step 3: Cross multiply
    19,239.70x = 26,491.57 × 16,400.71
  4. Step 4: Simplify right side
    19,239.70x = 434,480,557.01
  5. Step 5: Solve for x
    x = 434,480,557.01/19,239.70
  6. Step 6: Final answer
    x = 22,582.50

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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.