Home / 18,415.20-27,590.40-16,341.60

Finding the Fourth Proportional to 18,415.20, 27,590.40 and 16,341.60

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Solution

The fourth proportional to 18,415.20, 27,590.40 and 16,341.60 is: 24,483.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,415.20 : 27,590.40 = 16,341.60 : x
  2. Step 2: Convert to fraction form
    18,415.20/27,590.40 = 16,341.60/x
  3. Step 3: Cross multiply
    18,415.20x = 27,590.40 × 16,341.60
  4. Step 4: Simplify right side
    18,415.20x = 450,871,280.64
  5. Step 5: Solve for x
    x = 450,871,280.64/18,415.20
  6. Step 6: Final answer
    x = 24,483.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.