Home / 27,683.72-38,205.59-15,750.90

Finding the Fourth Proportional to 27,683.72, 38,205.59 and 15,750.90

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Solution

The fourth proportional to 27,683.72, 38,205.59 and 15,750.90 is: 21,737.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,683.72 : 38,205.59 = 15,750.90 : x
  2. Step 2: Convert to fraction form
    27,683.72/38,205.59 = 15,750.90/x
  3. Step 3: Cross multiply
    27,683.72x = 38,205.59 × 15,750.90
  4. Step 4: Simplify right side
    27,683.72x = 601,772,427.53
  5. Step 5: Solve for x
    x = 601,772,427.53/27,683.72
  6. Step 6: Final answer
    x = 21,737.41

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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.