Home / 19,070.90-28,606.37-7,971.51

Finding the Fourth Proportional to 19,070.90, 28,606.37 and 7,971.51

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Solution

The fourth proportional to 19,070.90, 28,606.37 and 7,971.51 is: 11,957.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,070.90 : 28,606.37 = 7,971.51 : x
  2. Step 2: Convert to fraction form
    19,070.90/28,606.37 = 7,971.51/x
  3. Step 3: Cross multiply
    19,070.90x = 28,606.37 × 7,971.51
  4. Step 4: Simplify right side
    19,070.90x = 228,035,924.66
  5. Step 5: Solve for x
    x = 228,035,924.66/19,070.90
  6. Step 6: Final answer
    x = 11,957.27

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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.