Home / 30,792.18-42,485.36-18,851.16

Finding the Fourth Proportional to 30,792.18, 42,485.36 and 18,851.16

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Solution

The fourth proportional to 30,792.18, 42,485.36 and 18,851.16 is: 26,009.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,792.18 : 42,485.36 = 18,851.16 : x
  2. Step 2: Convert to fraction form
    30,792.18/42,485.36 = 18,851.16/x
  3. Step 3: Cross multiply
    30,792.18x = 42,485.36 × 18,851.16
  4. Step 4: Simplify right side
    30,792.18x = 800,898,319.02
  5. Step 5: Solve for x
    x = 800,898,319.02/30,792.18
  6. Step 6: Final answer
    x = 26,009.80

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.