Home / 39,970.48-55,158.58-22,065.02

Finding the Fourth Proportional to 39,970.48, 55,158.58 and 22,065.02

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Solution

The fourth proportional to 39,970.48, 55,158.58 and 22,065.02 is: 30,449.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,970.48 : 55,158.58 = 22,065.02 : x
  2. Step 2: Convert to fraction form
    39,970.48/55,158.58 = 22,065.02/x
  3. Step 3: Cross multiply
    39,970.48x = 55,158.58 × 22,065.02
  4. Step 4: Simplify right side
    39,970.48x = 1,217,075,170.87
  5. Step 5: Solve for x
    x = 1,217,075,170.87/39,970.48
  6. Step 6: Final answer
    x = 30,449.35

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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.