Home / 31,389.53-47,084.37-7,697.18

Finding the Fourth Proportional to 31,389.53, 47,084.37 and 7,697.18

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Solution

The fourth proportional to 31,389.53, 47,084.37 and 7,697.18 is: 11,545.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,389.53 : 47,084.37 = 7,697.18 : x
  2. Step 2: Convert to fraction form
    31,389.53/47,084.37 = 7,697.18/x
  3. Step 3: Cross multiply
    31,389.53x = 47,084.37 × 7,697.18
  4. Step 4: Simplify right side
    31,389.53x = 362,416,871.08
  5. Step 5: Solve for x
    x = 362,416,871.08/31,389.53
  6. Step 6: Final answer
    x = 11,545.79

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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.