Home / 28,448.04-42,670.14-8,726.41

Finding the Fourth Proportional to 28,448.04, 42,670.14 and 8,726.41

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Solution

The fourth proportional to 28,448.04, 42,670.14 and 8,726.41 is: 13,089.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,448.04 : 42,670.14 = 8,726.41 : x
  2. Step 2: Convert to fraction form
    28,448.04/42,670.14 = 8,726.41/x
  3. Step 3: Cross multiply
    28,448.04x = 42,670.14 × 8,726.41
  4. Step 4: Simplify right side
    28,448.04x = 372,357,086.09
  5. Step 5: Solve for x
    x = 372,357,086.09/28,448.04
  6. Step 6: Final answer
    x = 13,089.03

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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.