Home / 31,271.55-43,152-18,522.48

Finding the Fourth Proportional to 31,271.55, 43,152 and 18,522.48

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Solution

The fourth proportional to 31,271.55, 43,152 and 18,522.48 is: 25,559.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,271.55 : 43,152 = 18,522.48 : x
  2. Step 2: Convert to fraction form
    31,271.55/43,152 = 18,522.48/x
  3. Step 3: Cross multiply
    31,271.55x = 43,152 × 18,522.48
  4. Step 4: Simplify right side
    31,271.55x = 799,282,056.96
  5. Step 5: Solve for x
    x = 799,282,056.96/31,271.55
  6. Step 6: Final answer
    x = 25,559.40

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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.