Home / 28,361.60-39,128.48-28,317.86

Finding the Fourth Proportional to 28,361.60, 39,128.48 and 28,317.86

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Solution

The fourth proportional to 28,361.60, 39,128.48 and 28,317.86 is: 39,068.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,361.60 : 39,128.48 = 28,317.86 : x
  2. Step 2: Convert to fraction form
    28,361.60/39,128.48 = 28,317.86/x
  3. Step 3: Cross multiply
    28,361.60x = 39,128.48 × 28,317.86
  4. Step 4: Simplify right side
    28,361.60x = 1,108,034,818.65
  5. Step 5: Solve for x
    x = 1,108,034,818.65/28,361.60
  6. Step 6: Final answer
    x = 39,068.14

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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.