Home / 28,925.90-39,905.96-18,850.67

Finding the Fourth Proportional to 28,925.90, 39,905.96 and 18,850.67

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Solution

The fourth proportional to 28,925.90, 39,905.96 and 18,850.67 is: 26,006.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,925.90 : 39,905.96 = 18,850.67 : x
  2. Step 2: Convert to fraction form
    28,925.90/39,905.96 = 18,850.67/x
  3. Step 3: Cross multiply
    28,925.90x = 39,905.96 × 18,850.67
  4. Step 4: Simplify right side
    28,925.90x = 752,254,082.99
  5. Step 5: Solve for x
    x = 752,254,082.99/28,925.90
  6. Step 6: Final answer
    x = 26,006.25

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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.