Home / 32,128.32-48,186.38-8,749.28

Finding the Fourth Proportional to 32,128.32, 48,186.38 and 8,749.28

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Solution

The fourth proportional to 32,128.32, 48,186.38 and 8,749.28 is: 13,122.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,128.32 : 48,186.38 = 8,749.28 : x
  2. Step 2: Convert to fraction form
    32,128.32/48,186.38 = 8,749.28/x
  3. Step 3: Cross multiply
    32,128.32x = 48,186.38 × 8,749.28
  4. Step 4: Simplify right side
    32,128.32x = 421,596,130.81
  5. Step 5: Solve for x
    x = 421,596,130.81/32,128.32
  6. Step 6: Final answer
    x = 13,122.26

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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.