Home / 25,983.80-38,975.70-25,638.20

Finding the Fourth Proportional to 25,983.80, 38,975.70 and 25,638.20

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Solution

The fourth proportional to 25,983.80, 38,975.70 and 25,638.20 is: 38,457.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,983.80 : 38,975.70 = 25,638.20 : x
  2. Step 2: Convert to fraction form
    25,983.80/38,975.70 = 25,638.20/x
  3. Step 3: Cross multiply
    25,983.80x = 38,975.70 × 25,638.20
  4. Step 4: Simplify right side
    25,983.80x = 999,266,791.74
  5. Step 5: Solve for x
    x = 999,266,791.74/25,983.80
  6. Step 6: Final answer
    x = 38,457.30

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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.