Home / 31,302.90-47,063.70-30,646.80

Finding the Fourth Proportional to 31,302.90, 47,063.70 and 30,646.80

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Solution

The fourth proportional to 31,302.90, 47,063.70 and 30,646.80 is: 46,077.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,302.90 : 47,063.70 = 30,646.80 : x
  2. Step 2: Convert to fraction form
    31,302.90/47,063.70 = 30,646.80/x
  3. Step 3: Cross multiply
    31,302.90x = 47,063.70 × 30,646.80
  4. Step 4: Simplify right side
    31,302.90x = 1,442,351,801.16
  5. Step 5: Solve for x
    x = 1,442,351,801.16/31,302.90
  6. Step 6: Final answer
    x = 46,077.26

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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.