Home / 35,607.20-53,415.60-12,240.80

Finding the Fourth Proportional to 35,607.20, 53,415.60 and 12,240.80

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Solution

The fourth proportional to 35,607.20, 53,415.60 and 12,240.80 is: 18,362.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,607.20 : 53,415.60 = 12,240.80 : x
  2. Step 2: Convert to fraction form
    35,607.20/53,415.60 = 12,240.80/x
  3. Step 3: Cross multiply
    35,607.20x = 53,415.60 × 12,240.80
  4. Step 4: Simplify right side
    35,607.20x = 653,849,676.48
  5. Step 5: Solve for x
    x = 653,849,676.48/35,607.20
  6. Step 6: Final answer
    x = 18,362.85

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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.