Home / 35,485.20-53,224.20-12,111.30

Finding the Fourth Proportional to 35,485.20, 53,224.20 and 12,111.30

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Solution

The fourth proportional to 35,485.20, 53,224.20 and 12,111.30 is: 18,165.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,485.20 : 53,224.20 = 12,111.30 : x
  2. Step 2: Convert to fraction form
    35,485.20/53,224.20 = 12,111.30/x
  3. Step 3: Cross multiply
    35,485.20x = 53,224.20 × 12,111.30
  4. Step 4: Simplify right side
    35,485.20x = 644,614,253.46
  5. Step 5: Solve for x
    x = 644,614,253.46/35,485.20
  6. Step 6: Final answer
    x = 18,165.72

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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.