Home / 28,037.70-42,064.65-8,316.72

Finding the Fourth Proportional to 28,037.70, 42,064.65 and 8,316.72

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Solution

The fourth proportional to 28,037.70, 42,064.65 and 8,316.72 is: 12,477.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,037.70 : 42,064.65 = 8,316.72 : x
  2. Step 2: Convert to fraction form
    28,037.70/42,064.65 = 8,316.72/x
  3. Step 3: Cross multiply
    28,037.70x = 42,064.65 × 8,316.72
  4. Step 4: Simplify right side
    28,037.70x = 349,839,915.95
  5. Step 5: Solve for x
    x = 349,839,915.95/28,037.70
  6. Step 6: Final answer
    x = 12,477.48

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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.