Home / 19,355.56-26,726.36-15,771.00

Finding the Fourth Proportional to 19,355.56, 26,726.36 and 15,771.00

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Solution

The fourth proportional to 19,355.56, 26,726.36 and 15,771.00 is: 21,776.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,355.56 : 26,726.36 = 15,771.00 : x
  2. Step 2: Convert to fraction form
    19,355.56/26,726.36 = 15,771.00/x
  3. Step 3: Cross multiply
    19,355.56x = 26,726.36 × 15,771.00
  4. Step 4: Simplify right side
    19,355.56x = 421,501,444.93
  5. Step 5: Solve for x
    x = 421,501,444.93/19,355.56
  6. Step 6: Final answer
    x = 21,776.77

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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.