Home / 28,404.90-42,607.14-8,683.38

Finding the Fourth Proportional to 28,404.90, 42,607.14 and 8,683.38

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Solution

The fourth proportional to 28,404.90, 42,607.14 and 8,683.38 is: 13,025.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,404.90 : 42,607.14 = 8,683.38 : x
  2. Step 2: Convert to fraction form
    28,404.90/42,607.14 = 8,683.38/x
  3. Step 3: Cross multiply
    28,404.90x = 42,607.14 × 8,683.38
  4. Step 4: Simplify right side
    28,404.90x = 369,973,987.33
  5. Step 5: Solve for x
    x = 369,973,987.33/28,404.90
  6. Step 6: Final answer
    x = 13,025.01

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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.