Home / 28,836.47-39,749.00-19,746.11

Finding the Fourth Proportional to 28,836.47, 39,749.00 and 19,746.11

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Solution

The fourth proportional to 28,836.47, 39,749.00 and 19,746.11 is: 27,218.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,836.47 : 39,749.00 = 19,746.11 : x
  2. Step 2: Convert to fraction form
    28,836.47/39,749.00 = 19,746.11/x
  3. Step 3: Cross multiply
    28,836.47x = 39,749.00 × 19,746.11
  4. Step 4: Simplify right side
    28,836.47x = 784,888,127.03
  5. Step 5: Solve for x
    x = 784,888,127.03/28,836.47
  6. Step 6: Final answer
    x = 27,218.60

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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.