Home / 35,780.46-53,679.33-12,406.38

Finding the Fourth Proportional to 35,780.46, 53,679.33 and 12,406.38

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Solution

The fourth proportional to 35,780.46, 53,679.33 and 12,406.38 is: 18,612.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,780.46 : 53,679.33 = 12,406.38 : x
  2. Step 2: Convert to fraction form
    35,780.46/53,679.33 = 12,406.38/x
  3. Step 3: Cross multiply
    35,780.46x = 53,679.33 × 12,406.38
  4. Step 4: Simplify right side
    35,780.46x = 665,966,166.13
  5. Step 5: Solve for x
    x = 665,966,166.13/35,780.46
  6. Step 6: Final answer
    x = 18,612.57

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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.