Home / 31,782.48-47,666.97-12,054.12

Finding the Fourth Proportional to 31,782.48, 47,666.97 and 12,054.12

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Solution

The fourth proportional to 31,782.48, 47,666.97 and 12,054.12 is: 18,078.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,782.48 : 47,666.97 = 12,054.12 : x
  2. Step 2: Convert to fraction form
    31,782.48/47,666.97 = 12,054.12/x
  3. Step 3: Cross multiply
    31,782.48x = 47,666.97 × 12,054.12
  4. Step 4: Simplify right side
    31,782.48x = 574,583,376.42
  5. Step 5: Solve for x
    x = 574,583,376.42/31,782.48
  6. Step 6: Final answer
    x = 18,078.62

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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.