Home / 28,719.07-39,626.23-17,386.36

Finding the Fourth Proportional to 28,719.07, 39,626.23 and 17,386.36

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Solution

The fourth proportional to 28,719.07, 39,626.23 and 17,386.36 is: 23,989.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,719.07 : 39,626.23 = 17,386.36 : x
  2. Step 2: Convert to fraction form
    28,719.07/39,626.23 = 17,386.36/x
  3. Step 3: Cross multiply
    28,719.07x = 39,626.23 × 17,386.36
  4. Step 4: Simplify right side
    28,719.07x = 688,955,658.63
  5. Step 5: Solve for x
    x = 688,955,658.63/28,719.07
  6. Step 6: Final answer
    x = 23,989.49

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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.