Home / 39,970.85-55,159.97-22,065.53

Finding the Fourth Proportional to 39,970.85, 55,159.97 and 22,065.53

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Solution

The fourth proportional to 39,970.85, 55,159.97 and 22,065.53 is: 30,450.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,970.85 : 55,159.97 = 22,065.53 : x
  2. Step 2: Convert to fraction form
    39,970.85/55,159.97 = 22,065.53/x
  3. Step 3: Cross multiply
    39,970.85x = 55,159.97 × 22,065.53
  4. Step 4: Simplify right side
    39,970.85x = 1,217,133,862.51
  5. Step 5: Solve for x
    x = 1,217,133,862.51/39,970.85
  6. Step 6: Final answer
    x = 30,450.54

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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.