Home / 19,139.78-28,655.75-14,444.87

Finding the Fourth Proportional to 19,139.78, 28,655.75 and 14,444.87

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Solution

The fourth proportional to 19,139.78, 28,655.75 and 14,444.87 is: 21,626.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,139.78 : 28,655.75 = 14,444.87 : x
  2. Step 2: Convert to fraction form
    19,139.78/28,655.75 = 14,444.87/x
  3. Step 3: Cross multiply
    19,139.78x = 28,655.75 × 14,444.87
  4. Step 4: Simplify right side
    19,139.78x = 413,928,476.34
  5. Step 5: Solve for x
    x = 413,928,476.34/19,139.78
  6. Step 6: Final answer
    x = 21,626.60

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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.