Home / 25,171.68-34,762.08-20,739.36

Finding the Fourth Proportional to 25,171.68, 34,762.08 and 20,739.36

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Solution

The fourth proportional to 25,171.68, 34,762.08 and 20,739.36 is: 28,641.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,171.68 : 34,762.08 = 20,739.36 : x
  2. Step 2: Convert to fraction form
    25,171.68/34,762.08 = 20,739.36/x
  3. Step 3: Cross multiply
    25,171.68x = 34,762.08 × 20,739.36
  4. Step 4: Simplify right side
    25,171.68x = 720,943,291.47
  5. Step 5: Solve for x
    x = 720,943,291.47/25,171.68
  6. Step 6: Final answer
    x = 28,641.05

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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.