Home / 19,928.95-27,471.91-16,386.01

Finding the Fourth Proportional to 19,928.95, 27,471.91 and 16,386.01

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Solution

The fourth proportional to 19,928.95, 27,471.91 and 16,386.01 is: 22,587.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,928.95 : 27,471.91 = 16,386.01 : x
  2. Step 2: Convert to fraction form
    19,928.95/27,471.91 = 16,386.01/x
  3. Step 3: Cross multiply
    19,928.95x = 27,471.91 × 16,386.01
  4. Step 4: Simplify right side
    19,928.95x = 450,154,991.98
  5. Step 5: Solve for x
    x = 450,154,991.98/19,928.95
  6. Step 6: Final answer
    x = 22,587.99

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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.