Home / 28,688.49-39,603.60-19,144.26

Finding the Fourth Proportional to 28,688.49, 39,603.60 and 19,144.26

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Solution

The fourth proportional to 28,688.49, 39,603.60 and 19,144.26 is: 26,428.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,688.49 : 39,603.60 = 19,144.26 : x
  2. Step 2: Convert to fraction form
    28,688.49/39,603.60 = 19,144.26/x
  3. Step 3: Cross multiply
    28,688.49x = 39,603.60 × 19,144.26
  4. Step 4: Simplify right side
    28,688.49x = 758,181,615.34
  5. Step 5: Solve for x
    x = 758,181,615.34/28,688.49
  6. Step 6: Final answer
    x = 26,428.08

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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.