Home / 39,802.11-54,882.05-30,706.75

Finding the Fourth Proportional to 39,802.11, 54,882.05 and 30,706.75

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Solution

The fourth proportional to 39,802.11, 54,882.05 and 30,706.75 is: 42,340.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,802.11 : 54,882.05 = 30,706.75 : x
  2. Step 2: Convert to fraction form
    39,802.11/54,882.05 = 30,706.75/x
  3. Step 3: Cross multiply
    39,802.11x = 54,882.05 × 30,706.75
  4. Step 4: Simplify right side
    39,802.11x = 1,685,249,388.84
  5. Step 5: Solve for x
    x = 1,685,249,388.84/39,802.11
  6. Step 6: Final answer
    x = 42,340.70

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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.