Home / 25,556.80-38,349.60-9,972.40

Finding the Fourth Proportional to 25,556.80, 38,349.60 and 9,972.40

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Solution

The fourth proportional to 25,556.80, 38,349.60 and 9,972.40 is: 14,964.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,556.80 : 38,349.60 = 9,972.40 : x
  2. Step 2: Convert to fraction form
    25,556.80/38,349.60 = 9,972.40/x
  3. Step 3: Cross multiply
    25,556.80x = 38,349.60 × 9,972.40
  4. Step 4: Simplify right side
    25,556.80x = 382,437,551.04
  5. Step 5: Solve for x
    x = 382,437,551.04/25,556.80
  6. Step 6: Final answer
    x = 14,964.22

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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.