Home / 25,647.80-38,466.30-10,857.20

Finding the Fourth Proportional to 25,647.80, 38,466.30 and 10,857.20

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Solution

The fourth proportional to 25,647.80, 38,466.30 and 10,857.20 is: 16,283.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,647.80 : 38,466.30 = 10,857.20 : x
  2. Step 2: Convert to fraction form
    25,647.80/38,466.30 = 10,857.20/x
  3. Step 3: Cross multiply
    25,647.80x = 38,466.30 × 10,857.20
  4. Step 4: Simplify right side
    25,647.80x = 417,636,312.36
  5. Step 5: Solve for x
    x = 417,636,312.36/25,647.80
  6. Step 6: Final answer
    x = 16,283.51

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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.