Home / 20,762.07-31,155.41-19,448.58

Finding the Fourth Proportional to 20,762.07, 31,155.41 and 19,448.58

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Solution

The fourth proportional to 20,762.07, 31,155.41 and 19,448.58 is: 29,184.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,762.07 : 31,155.41 = 19,448.58 : x
  2. Step 2: Convert to fraction form
    20,762.07/31,155.41 = 19,448.58/x
  3. Step 3: Cross multiply
    20,762.07x = 31,155.41 × 19,448.58
  4. Step 4: Simplify right side
    20,762.07x = 605,928,506.95
  5. Step 5: Solve for x
    x = 605,928,506.95/20,762.07
  6. Step 6: Final answer
    x = 29,184.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.