Home / 27,893.08-38,492.46-15,318.60

Finding the Fourth Proportional to 27,893.08, 38,492.46 and 15,318.60

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Solution

The fourth proportional to 27,893.08, 38,492.46 and 15,318.60 is: 21,139.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,893.08 : 38,492.46 = 15,318.60 : x
  2. Step 2: Convert to fraction form
    27,893.08/38,492.46 = 15,318.60/x
  3. Step 3: Cross multiply
    27,893.08x = 38,492.46 × 15,318.60
  4. Step 4: Simplify right side
    27,893.08x = 589,650,597.76
  5. Step 5: Solve for x
    x = 589,650,597.76/27,893.08
  6. Step 6: Final answer
    x = 21,139.67

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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.