Home / 31,487.48-47,283.86-19,668.77

Finding the Fourth Proportional to 31,487.48, 47,283.86 and 19,668.77

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Solution

The fourth proportional to 31,487.48, 47,283.86 and 19,668.77 is: 29,536.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,487.48 : 47,283.86 = 19,668.77 : x
  2. Step 2: Convert to fraction form
    31,487.48/47,283.86 = 19,668.77/x
  3. Step 3: Cross multiply
    31,487.48x = 47,283.86 × 19,668.77
  4. Step 4: Simplify right side
    31,487.48x = 930,015,130.63
  5. Step 5: Solve for x
    x = 930,015,130.63/31,487.48
  6. Step 6: Final answer
    x = 29,536.03

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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.