Home / 19,001.86-28,501.35-6,681.22

Finding the Fourth Proportional to 19,001.86, 28,501.35 and 6,681.22

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Solution

The fourth proportional to 19,001.86, 28,501.35 and 6,681.22 is: 10,021.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,001.86 : 28,501.35 = 6,681.22 : x
  2. Step 2: Convert to fraction form
    19,001.86/28,501.35 = 6,681.22/x
  3. Step 3: Cross multiply
    19,001.86x = 28,501.35 × 6,681.22
  4. Step 4: Simplify right side
    19,001.86x = 190,423,789.65
  5. Step 5: Solve for x
    x = 190,423,789.65/19,001.86
  6. Step 6: Final answer
    x = 10,021.32

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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.