Home / 25,627.90-35,369.04-15,555.55

Finding the Fourth Proportional to 25,627.90, 35,369.04 and 15,555.55

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Solution

The fourth proportional to 25,627.90, 35,369.04 and 15,555.55 is: 21,468.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,627.90 : 35,369.04 = 15,555.55 : x
  2. Step 2: Convert to fraction form
    25,627.90/35,369.04 = 15,555.55/x
  3. Step 3: Cross multiply
    25,627.90x = 35,369.04 × 15,555.55
  4. Step 4: Simplify right side
    25,627.90x = 550,184,870.17
  5. Step 5: Solve for x
    x = 550,184,870.17/25,627.90
  6. Step 6: Final answer
    x = 21,468.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.