Home / 19,001.08-28,430.34-18,001

Finding the Fourth Proportional to 19,001.08, 28,430.34 and 18,001

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Solution

The fourth proportional to 19,001.08, 28,430.34 and 18,001 is: 26,933.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,001.08 : 28,430.34 = 18,001 : x
  2. Step 2: Convert to fraction form
    19,001.08/28,430.34 = 18,001/x
  3. Step 3: Cross multiply
    19,001.08x = 28,430.34 × 18,001
  4. Step 4: Simplify right side
    19,001.08x = 511,774,550.34
  5. Step 5: Solve for x
    x = 511,774,550.34/19,001.08
  6. Step 6: Final answer
    x = 26,933.97

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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.