Home / 39,479.96-54,483.81-21,576.17

Finding the Fourth Proportional to 39,479.96, 54,483.81 and 21,576.17

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Solution

The fourth proportional to 39,479.96, 54,483.81 and 21,576.17 is: 29,775.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,479.96 : 54,483.81 = 21,576.17 : x
  2. Step 2: Convert to fraction form
    39,479.96/54,483.81 = 21,576.17/x
  3. Step 3: Cross multiply
    39,479.96x = 54,483.81 × 21,576.17
  4. Step 4: Simplify right side
    39,479.96x = 1,175,551,946.81
  5. Step 5: Solve for x
    x = 1,175,551,946.81/39,479.96
  6. Step 6: Final answer
    x = 29,775.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.