Home / 28,106.57-42,166.65-8,386.67

Finding the Fourth Proportional to 28,106.57, 42,166.65 and 8,386.67

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Solution

The fourth proportional to 28,106.57, 42,166.65 and 8,386.67 is: 12,582.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,106.57 : 42,166.65 = 8,386.67 : x
  2. Step 2: Convert to fraction form
    28,106.57/42,166.65 = 8,386.67/x
  3. Step 3: Cross multiply
    28,106.57x = 42,166.65 × 8,386.67
  4. Step 4: Simplify right side
    28,106.57x = 353,637,778.56
  5. Step 5: Solve for x
    x = 353,637,778.56/28,106.57
  6. Step 6: Final answer
    x = 12,582.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.