Home / 28,688.58-39,590.28-16,113.42

Finding the Fourth Proportional to 28,688.58, 39,590.28 and 16,113.42

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Solution

The fourth proportional to 28,688.58, 39,590.28 and 16,113.42 is: 22,236.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,688.58 : 39,590.28 = 16,113.42 : x
  2. Step 2: Convert to fraction form
    28,688.58/39,590.28 = 16,113.42/x
  3. Step 3: Cross multiply
    28,688.58x = 39,590.28 × 16,113.42
  4. Step 4: Simplify right side
    28,688.58x = 637,934,809.56
  5. Step 5: Solve for x
    x = 637,934,809.56/28,688.58
  6. Step 6: Final answer
    x = 22,236.54

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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.