Home / 28,237.91-42,300.39-16,987.05

Finding the Fourth Proportional to 28,237.91, 42,300.39 and 16,987.05

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Solution

The fourth proportional to 28,237.91, 42,300.39 and 16,987.05 is: 25,446.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,237.91 : 42,300.39 = 16,987.05 : x
  2. Step 2: Convert to fraction form
    28,237.91/42,300.39 = 16,987.05/x
  3. Step 3: Cross multiply
    28,237.91x = 42,300.39 × 16,987.05
  4. Step 4: Simplify right side
    28,237.91x = 718,558,839.95
  5. Step 5: Solve for x
    x = 718,558,839.95/28,237.91
  6. Step 6: Final answer
    x = 25,446.60

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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.