Home / 47,753.79-71,630.61-12,693.45

Finding the Fourth Proportional to 47,753.79, 71,630.61 and 12,693.45

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Solution

The fourth proportional to 47,753.79, 71,630.61 and 12,693.45 is: 19,040.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,753.79 : 71,630.61 = 12,693.45 : x
  2. Step 2: Convert to fraction form
    47,753.79/71,630.61 = 12,693.45/x
  3. Step 3: Cross multiply
    47,753.79x = 71,630.61 × 12,693.45
  4. Step 4: Simplify right side
    47,753.79x = 909,239,328.49
  5. Step 5: Solve for x
    x = 909,239,328.49/47,753.79
  6. Step 6: Final answer
    x = 19,040.15

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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.