Home / 38,983.46-58,476.08-12,690.25

Finding the Fourth Proportional to 38,983.46, 58,476.08 and 12,690.25

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Solution

The fourth proportional to 38,983.46, 58,476.08 and 12,690.25 is: 19,035.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,983.46 : 58,476.08 = 12,690.25 : x
  2. Step 2: Convert to fraction form
    38,983.46/58,476.08 = 12,690.25/x
  3. Step 3: Cross multiply
    38,983.46x = 58,476.08 × 12,690.25
  4. Step 4: Simplify right side
    38,983.46x = 742,075,959.76
  5. Step 5: Solve for x
    x = 742,075,959.76/38,983.46
  6. Step 6: Final answer
    x = 19,035.66

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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.