Home / 20,598.44-28,428.88-13,045.47

Finding the Fourth Proportional to 20,598.44, 28,428.88 and 13,045.47

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Solution

The fourth proportional to 20,598.44, 28,428.88 and 13,045.47 is: 18,004.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,598.44 : 28,428.88 = 13,045.47 : x
  2. Step 2: Convert to fraction form
    20,598.44/28,428.88 = 13,045.47/x
  3. Step 3: Cross multiply
    20,598.44x = 28,428.88 × 13,045.47
  4. Step 4: Simplify right side
    20,598.44x = 370,868,035.95
  5. Step 5: Solve for x
    x = 370,868,035.95/20,598.44
  6. Step 6: Final answer
    x = 18,004.67

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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.