Home / 19,355.10-26,699.67-15,726.30

Finding the Fourth Proportional to 19,355.10, 26,699.67 and 15,726.30

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Solution

The fourth proportional to 19,355.10, 26,699.67 and 15,726.30 is: 21,693.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,355.10 : 26,699.67 = 15,726.30 : x
  2. Step 2: Convert to fraction form
    19,355.10/26,699.67 = 15,726.30/x
  3. Step 3: Cross multiply
    19,355.10x = 26,699.67 × 15,726.30
  4. Step 4: Simplify right side
    19,355.10x = 419,887,020.32
  5. Step 5: Solve for x
    x = 419,887,020.32/19,355.10
  6. Step 6: Final answer
    x = 21,693.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.