Home / 38,956.98-58,423.32-12,656.28

Finding the Fourth Proportional to 38,956.98, 58,423.32 and 12,656.28

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Solution

The fourth proportional to 38,956.98, 58,423.32 and 12,656.28 is: 18,980.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,956.98 : 58,423.32 = 12,656.28 : x
  2. Step 2: Convert to fraction form
    38,956.98/58,423.32 = 12,656.28/x
  3. Step 3: Cross multiply
    38,956.98x = 58,423.32 × 12,656.28
  4. Step 4: Simplify right side
    38,956.98x = 739,421,896.45
  5. Step 5: Solve for x
    x = 739,421,896.45/38,956.98
  6. Step 6: Final answer
    x = 18,980.47

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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.