Home / 28,043.48-42,057.90-8,316.74

Finding the Fourth Proportional to 28,043.48, 42,057.90 and 8,316.74

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Solution

The fourth proportional to 28,043.48, 42,057.90 and 8,316.74 is: 12,472.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,043.48 : 42,057.90 = 8,316.74 : x
  2. Step 2: Convert to fraction form
    28,043.48/42,057.90 = 8,316.74/x
  3. Step 3: Cross multiply
    28,043.48x = 42,057.90 × 8,316.74
  4. Step 4: Simplify right side
    28,043.48x = 349,784,619.25
  5. Step 5: Solve for x
    x = 349,784,619.25/28,043.48
  6. Step 6: Final answer
    x = 12,472.94

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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.