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Finding the Fourth Proportional to 35,420.86, 48,880.71 and 19,287.92

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Solution

The fourth proportional to 35,420.86, 48,880.71 and 19,287.92 is: 26,617.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,420.86 : 48,880.71 = 19,287.92 : x
  2. Step 2: Convert to fraction form
    35,420.86/48,880.71 = 19,287.92/x
  3. Step 3: Cross multiply
    35,420.86x = 48,880.71 × 19,287.92
  4. Step 4: Simplify right side
    35,420.86x = 942,807,224.02
  5. Step 5: Solve for x
    x = 942,807,224.02/35,420.86
  6. Step 6: Final answer
    x = 26,617.29

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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.