Home / 31,320.90-47,090.70-30,664.80

Finding the Fourth Proportional to 31,320.90, 47,090.70 and 30,664.80

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Solution

The fourth proportional to 31,320.90, 47,090.70 and 30,664.80 is: 46,104.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,320.90 : 47,090.70 = 30,664.80 : x
  2. Step 2: Convert to fraction form
    31,320.90/47,090.70 = 30,664.80/x
  3. Step 3: Cross multiply
    31,320.90x = 47,090.70 × 30,664.80
  4. Step 4: Simplify right side
    31,320.90x = 1,444,026,897.36
  5. Step 5: Solve for x
    x = 1,444,026,897.36/31,320.90
  6. Step 6: Final answer
    x = 46,104.26

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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.