Home / 28,036.93-42,055.55-8,315.63

Finding the Fourth Proportional to 28,036.93, 42,055.55 and 8,315.63

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Solution

The fourth proportional to 28,036.93, 42,055.55 and 8,315.63 is: 12,473.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,036.93 : 42,055.55 = 8,315.63 : x
  2. Step 2: Convert to fraction form
    28,036.93/42,055.55 = 8,315.63/x
  3. Step 3: Cross multiply
    28,036.93x = 42,055.55 × 8,315.63
  4. Step 4: Simplify right side
    28,036.93x = 349,718,351.67
  5. Step 5: Solve for x
    x = 349,718,351.67/28,036.93
  6. Step 6: Final answer
    x = 12,473.49

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Double scale
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Similar ratio
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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.