Home / 31,802.07-47,703.09-18,647.27

Finding the Fourth Proportional to 31,802.07, 47,703.09 and 18,647.27

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Solution

The fourth proportional to 31,802.07, 47,703.09 and 18,647.27 is: 27,970.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,802.07 : 47,703.09 = 18,647.27 : x
  2. Step 2: Convert to fraction form
    31,802.07/47,703.09 = 18,647.27/x
  3. Step 3: Cross multiply
    31,802.07x = 47,703.09 × 18,647.27
  4. Step 4: Simplify right side
    31,802.07x = 889,532,160.55
  5. Step 5: Solve for x
    x = 889,532,160.55/31,802.07
  6. Step 6: Final answer
    x = 27,970.89

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1.5x scale

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.