Home / 29,261.86-40,378.43-16,513.90

Finding the Fourth Proportional to 29,261.86, 40,378.43 and 16,513.90

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Solution

The fourth proportional to 29,261.86, 40,378.43 and 16,513.90 is: 22,787.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,261.86 : 40,378.43 = 16,513.90 : x
  2. Step 2: Convert to fraction form
    29,261.86/40,378.43 = 16,513.90/x
  3. Step 3: Cross multiply
    29,261.86x = 40,378.43 × 16,513.90
  4. Step 4: Simplify right side
    29,261.86x = 666,805,355.18
  5. Step 5: Solve for x
    x = 666,805,355.18/29,261.86
  6. Step 6: Final answer
    x = 22,787.52

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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.