Home / 39,311.51-54,257.36-22,317.35

Finding the Fourth Proportional to 39,311.51, 54,257.36 and 22,317.35

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Solution

The fourth proportional to 39,311.51, 54,257.36 and 22,317.35 is: 30,802.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,311.51 : 54,257.36 = 22,317.35 : x
  2. Step 2: Convert to fraction form
    39,311.51/54,257.36 = 22,317.35/x
  3. Step 3: Cross multiply
    39,311.51x = 54,257.36 × 22,317.35
  4. Step 4: Simplify right side
    39,311.51x = 1,210,880,110.32
  5. Step 5: Solve for x
    x = 1,210,880,110.32/39,311.51
  6. Step 6: Final answer
    x = 30,802.18

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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.