Home / 47,975.49-71,966.88-12,915.45

Finding the Fourth Proportional to 47,975.49, 71,966.88 and 12,915.45

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Solution

The fourth proportional to 47,975.49, 71,966.88 and 12,915.45 is: 19,374.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,975.49 : 71,966.88 = 12,915.45 : x
  2. Step 2: Convert to fraction form
    47,975.49/71,966.88 = 12,915.45/x
  3. Step 3: Cross multiply
    47,975.49x = 71,966.88 × 12,915.45
  4. Step 4: Simplify right side
    47,975.49x = 929,484,640.30
  5. Step 5: Solve for x
    x = 929,484,640.30/47,975.49
  6. Step 6: Final answer
    x = 19,374.16

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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.