Home / 28,140.18-38,834.52-15,394.26

Finding the Fourth Proportional to 28,140.18, 38,834.52 and 15,394.26

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Solution

The fourth proportional to 28,140.18, 38,834.52 and 15,394.26 is: 21,244.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,140.18 : 38,834.52 = 15,394.26 : x
  2. Step 2: Convert to fraction form
    28,140.18/38,834.52 = 15,394.26/x
  3. Step 3: Cross multiply
    28,140.18x = 38,834.52 × 15,394.26
  4. Step 4: Simplify right side
    28,140.18x = 597,828,697.86
  5. Step 5: Solve for x
    x = 597,828,697.86/28,140.18
  6. Step 6: Final answer
    x = 21,244.67

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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.