Home / 28,504.13-42,756.80-9,784.08

Finding the Fourth Proportional to 28,504.13, 42,756.80 and 9,784.08

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Solution

The fourth proportional to 28,504.13, 42,756.80 and 9,784.08 is: 14,676.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,504.13 : 42,756.80 = 9,784.08 : x
  2. Step 2: Convert to fraction form
    28,504.13/42,756.80 = 9,784.08/x
  3. Step 3: Cross multiply
    28,504.13x = 42,756.80 × 9,784.08
  4. Step 4: Simplify right side
    28,504.13x = 418,335,951.74
  5. Step 5: Solve for x
    x = 418,335,951.74/28,504.13
  6. Step 6: Final answer
    x = 14,676.33

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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.