Home / 31,254.12-46,875.86-13,719.24

Finding the Fourth Proportional to 31,254.12, 46,875.86 and 13,719.24

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Solution

The fourth proportional to 31,254.12, 46,875.86 and 13,719.24 is: 20,576.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,254.12 : 46,875.86 = 13,719.24 : x
  2. Step 2: Convert to fraction form
    31,254.12/46,875.86 = 13,719.24/x
  3. Step 3: Cross multiply
    31,254.12x = 46,875.86 × 13,719.24
  4. Step 4: Simplify right side
    31,254.12x = 643,101,173.55
  5. Step 5: Solve for x
    x = 643,101,173.55/31,254.12
  6. Step 6: Final answer
    x = 20,576.52

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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.