Home / 34,678.79-47,856.39-18,762.89

Finding the Fourth Proportional to 34,678.79, 47,856.39 and 18,762.89

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Solution

The fourth proportional to 34,678.79, 47,856.39 and 18,762.89 is: 25,892.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,678.79 : 47,856.39 = 18,762.89 : x
  2. Step 2: Convert to fraction form
    34,678.79/47,856.39 = 18,762.89/x
  3. Step 3: Cross multiply
    34,678.79x = 47,856.39 × 18,762.89
  4. Step 4: Simplify right side
    34,678.79x = 897,924,181.37
  5. Step 5: Solve for x
    x = 897,924,181.37/34,678.79
  6. Step 6: Final answer
    x = 25,892.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.