Home / 34,358.07-47,420.06-20,211.51

Finding the Fourth Proportional to 34,358.07, 47,420.06 and 20,211.51

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Solution

The fourth proportional to 34,358.07, 47,420.06 and 20,211.51 is: 27,895.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,358.07 : 47,420.06 = 20,211.51 : x
  2. Step 2: Convert to fraction form
    34,358.07/47,420.06 = 20,211.51/x
  3. Step 3: Cross multiply
    34,358.07x = 47,420.06 × 20,211.51
  4. Step 4: Simplify right side
    34,358.07x = 958,430,915.83
  5. Step 5: Solve for x
    x = 958,430,915.83/34,358.07
  6. Step 6: Final answer
    x = 27,895.37

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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.