Home / 39,970.21-55,159.33-22,065.22

Finding the Fourth Proportional to 39,970.21, 55,159.33 and 22,065.22

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Solution

The fourth proportional to 39,970.21, 55,159.33 and 22,065.22 is: 30,450.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,970.21 : 55,159.33 = 22,065.22 : x
  2. Step 2: Convert to fraction form
    39,970.21/55,159.33 = 22,065.22/x
  3. Step 3: Cross multiply
    39,970.21x = 55,159.33 × 22,065.22
  4. Step 4: Simplify right side
    39,970.21x = 1,217,102,751.50
  5. Step 5: Solve for x
    x = 1,217,102,751.50/39,970.21
  6. Step 6: Final answer
    x = 30,450.25

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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.