Home / 30,005.28-41,408.12-16,577.40

Finding the Fourth Proportional to 30,005.28, 41,408.12 and 16,577.40

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Solution

The fourth proportional to 30,005.28, 41,408.12 and 16,577.40 is: 22,877.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,005.28 : 41,408.12 = 16,577.40 : x
  2. Step 2: Convert to fraction form
    30,005.28/41,408.12 = 16,577.40/x
  3. Step 3: Cross multiply
    30,005.28x = 41,408.12 × 16,577.40
  4. Step 4: Simplify right side
    30,005.28x = 686,439,009.93
  5. Step 5: Solve for x
    x = 686,439,009.93/30,005.28
  6. Step 6: Final answer
    x = 22,877.27

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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.