Home / 28,903.42-39,885.88-16,156.63

Finding the Fourth Proportional to 28,903.42, 39,885.88 and 16,156.63

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Solution

The fourth proportional to 28,903.42, 39,885.88 and 16,156.63 is: 22,295.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,903.42 : 39,885.88 = 16,156.63 : x
  2. Step 2: Convert to fraction form
    28,903.42/39,885.88 = 16,156.63/x
  3. Step 3: Cross multiply
    28,903.42x = 39,885.88 × 16,156.63
  4. Step 4: Simplify right side
    28,903.42x = 644,421,205.96
  5. Step 5: Solve for x
    x = 644,421,205.96/28,903.42
  6. Step 6: Final answer
    x = 22,295.67

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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.