Home / 35,787.42-53,690.85-12,415.68

Finding the Fourth Proportional to 35,787.42, 53,690.85 and 12,415.68

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Solution

The fourth proportional to 35,787.42, 53,690.85 and 12,415.68 is: 18,626.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,787.42 : 53,690.85 = 12,415.68 : x
  2. Step 2: Convert to fraction form
    35,787.42/53,690.85 = 12,415.68/x
  3. Step 3: Cross multiply
    35,787.42x = 53,690.85 × 12,415.68
  4. Step 4: Simplify right side
    35,787.42x = 666,608,412.53
  5. Step 5: Solve for x
    x = 666,608,412.53/35,787.42
  6. Step 6: Final answer
    x = 18,626.89

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1.5x scale

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.