Home / 31,140.51-46,682.01-12,416.01

Finding the Fourth Proportional to 31,140.51, 46,682.01 and 12,416.01

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Solution

The fourth proportional to 31,140.51, 46,682.01 and 12,416.01 is: 18,612.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,140.51 : 46,682.01 = 12,416.01 : x
  2. Step 2: Convert to fraction form
    31,140.51/46,682.01 = 12,416.01/x
  3. Step 3: Cross multiply
    31,140.51x = 46,682.01 × 12,416.01
  4. Step 4: Simplify right side
    31,140.51x = 579,604,302.98
  5. Step 5: Solve for x
    x = 579,604,302.98/31,140.51
  6. Step 6: Final answer
    x = 18,612.55

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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.