Home / 35,438.92-53,158.61-9,143.89

Finding the Fourth Proportional to 35,438.92, 53,158.61 and 9,143.89

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Solution

The fourth proportional to 35,438.92, 53,158.61 and 9,143.89 is: 13,715.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,438.92 : 53,158.61 = 9,143.89 : x
  2. Step 2: Convert to fraction form
    35,438.92/53,158.61 = 9,143.89/x
  3. Step 3: Cross multiply
    35,438.92x = 53,158.61 × 9,143.89
  4. Step 4: Simplify right side
    35,438.92x = 486,076,482.39
  5. Step 5: Solve for x
    x = 486,076,482.39/35,438.92
  6. Step 6: Final answer
    x = 13,715.89

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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.