Home / 19,339.61-28,748.64-18,772.07

Finding the Fourth Proportional to 19,339.61, 28,748.64 and 18,772.07

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Solution

The fourth proportional to 19,339.61, 28,748.64 and 18,772.07 is: 27,904.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,339.61 : 28,748.64 = 18,772.07 : x
  2. Step 2: Convert to fraction form
    19,339.61/28,748.64 = 18,772.07/x
  3. Step 3: Cross multiply
    19,339.61x = 28,748.64 × 18,772.07
  4. Step 4: Simplify right side
    19,339.61x = 539,671,409.14
  5. Step 5: Solve for x
    x = 539,671,409.14/19,339.61
  6. Step 6: Final answer
    x = 27,904.99

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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.