Home / 25,435.80-38,150.10-7,907.40

Finding the Fourth Proportional to 25,435.80, 38,150.10 and 7,907.40

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Solution

The fourth proportional to 25,435.80, 38,150.10 and 7,907.40 is: 11,859.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,435.80 : 38,150.10 = 7,907.40 : x
  2. Step 2: Convert to fraction form
    25,435.80/38,150.10 = 7,907.40/x
  3. Step 3: Cross multiply
    25,435.80x = 38,150.10 × 7,907.40
  4. Step 4: Simplify right side
    25,435.80x = 301,668,100.74
  5. Step 5: Solve for x
    x = 301,668,100.74/25,435.80
  6. Step 6: Final answer
    x = 11,859.98

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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.