Home / 28,157.52-38,841.81-18,087.45

Finding the Fourth Proportional to 28,157.52, 38,841.81 and 18,087.45

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Solution

The fourth proportional to 28,157.52, 38,841.81 and 18,087.45 is: 24,950.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,157.52 : 38,841.81 = 18,087.45 : x
  2. Step 2: Convert to fraction form
    28,157.52/38,841.81 = 18,087.45/x
  3. Step 3: Cross multiply
    28,157.52x = 38,841.81 × 18,087.45
  4. Step 4: Simplify right side
    28,157.52x = 702,549,102.08
  5. Step 5: Solve for x
    x = 702,549,102.08/28,157.52
  6. Step 6: Final answer
    x = 24,950.67

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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.