Home / 38,900.64-58,338.72-12,599.28

Finding the Fourth Proportional to 38,900.64, 58,338.72 and 12,599.28

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Solution

The fourth proportional to 38,900.64, 58,338.72 and 12,599.28 is: 18,894.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,900.64 : 58,338.72 = 12,599.28 : x
  2. Step 2: Convert to fraction form
    38,900.64/58,338.72 = 12,599.28/x
  3. Step 3: Cross multiply
    38,900.64x = 58,338.72 × 12,599.28
  4. Step 4: Simplify right side
    38,900.64x = 735,025,868.12
  5. Step 5: Solve for x
    x = 735,025,868.12/38,900.64
  6. Step 6: Final answer
    x = 18,894.96

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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.