Home / 28,765.49-39,715.88-18,014.67

Finding the Fourth Proportional to 28,765.49, 39,715.88 and 18,014.67

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Solution

The fourth proportional to 28,765.49, 39,715.88 and 18,014.67 is: 24,872.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,765.49 : 39,715.88 = 18,014.67 : x
  2. Step 2: Convert to fraction form
    28,765.49/39,715.88 = 18,014.67/x
  3. Step 3: Cross multiply
    28,765.49x = 39,715.88 × 18,014.67
  4. Step 4: Simplify right side
    28,765.49x = 715,468,381.89
  5. Step 5: Solve for x
    x = 715,468,381.89/28,765.49
  6. Step 6: Final answer
    x = 24,872.46

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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.