Home / 28,483.11-39,308.99-15,737.41

Finding the Fourth Proportional to 28,483.11, 39,308.99 and 15,737.41

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Solution

The fourth proportional to 28,483.11, 39,308.99 and 15,737.41 is: 21,718.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,483.11 : 39,308.99 = 15,737.41 : x
  2. Step 2: Convert to fraction form
    28,483.11/39,308.99 = 15,737.41/x
  3. Step 3: Cross multiply
    28,483.11x = 39,308.99 × 15,737.41
  4. Step 4: Simplify right side
    28,483.11x = 618,621,515.36
  5. Step 5: Solve for x
    x = 618,621,515.36/28,483.11
  6. Step 6: Final answer
    x = 21,718.89

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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.