Home / 34,688.40-47,858.20-19,579.28

Finding the Fourth Proportional to 34,688.40, 47,858.20 and 19,579.28

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Solution

The fourth proportional to 34,688.40, 47,858.20 and 19,579.28 is: 27,012.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,688.40 : 47,858.20 = 19,579.28 : x
  2. Step 2: Convert to fraction form
    34,688.40/47,858.20 = 19,579.28/x
  3. Step 3: Cross multiply
    34,688.40x = 47,858.20 × 19,579.28
  4. Step 4: Simplify right side
    34,688.40x = 937,029,098.10
  5. Step 5: Solve for x
    x = 937,029,098.10/34,688.40
  6. Step 6: Final answer
    x = 27,012.75

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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.