Home / 28,498.64-42,748.56-9,778.58

Finding the Fourth Proportional to 28,498.64, 42,748.56 and 9,778.58

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Solution

The fourth proportional to 28,498.64, 42,748.56 and 9,778.58 is: 14,668.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,498.64 : 42,748.56 = 9,778.58 : x
  2. Step 2: Convert to fraction form
    28,498.64/42,748.56 = 9,778.58/x
  3. Step 3: Cross multiply
    28,498.64x = 42,748.56 × 9,778.58
  4. Step 4: Simplify right side
    28,498.64x = 418,020,213.84
  5. Step 5: Solve for x
    x = 418,020,213.84/28,498.64
  6. Step 6: Final answer
    x = 14,668.08

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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.