Home / 31,563.81-47,345.72-12,854.03

Finding the Fourth Proportional to 31,563.81, 47,345.72 and 12,854.03

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Solution

The fourth proportional to 31,563.81, 47,345.72 and 12,854.03 is: 19,281.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,563.81 : 47,345.72 = 12,854.03 : x
  2. Step 2: Convert to fraction form
    31,563.81/47,345.72 = 12,854.03/x
  3. Step 3: Cross multiply
    31,563.81x = 47,345.72 × 12,854.03
  4. Step 4: Simplify right side
    31,563.81x = 608,583,004.25
  5. Step 5: Solve for x
    x = 608,583,004.25/31,563.81
  6. Step 6: Final answer
    x = 19,281.04

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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.