Home / 31,013.40-46,530.90-13,488.60

Finding the Fourth Proportional to 31,013.40, 46,530.90 and 13,488.60

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Solution

The fourth proportional to 31,013.40, 46,530.90 and 13,488.60 is: 20,237.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,013.40 : 46,530.90 = 13,488.60 : x
  2. Step 2: Convert to fraction form
    31,013.40/46,530.90 = 13,488.60/x
  3. Step 3: Cross multiply
    31,013.40x = 46,530.90 × 13,488.60
  4. Step 4: Simplify right side
    31,013.40x = 627,636,697.74
  5. Step 5: Solve for x
    x = 627,636,697.74/31,013.40
  6. Step 6: Final answer
    x = 20,237.60

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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.