Home / 35,439.40-53,166.30-12,068.20

Finding the Fourth Proportional to 35,439.40, 53,166.30 and 12,068.20

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Solution

The fourth proportional to 35,439.40, 53,166.30 and 12,068.20 is: 18,104.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,439.40 : 53,166.30 = 12,068.20 : x
  2. Step 2: Convert to fraction form
    35,439.40/53,166.30 = 12,068.20/x
  3. Step 3: Cross multiply
    35,439.40x = 53,166.30 × 12,068.20
  4. Step 4: Simplify right side
    35,439.40x = 641,621,541.66
  5. Step 5: Solve for x
    x = 641,621,541.66/35,439.40
  6. Step 6: Final answer
    x = 18,104.75

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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.