Home / 34,218.63-47,221.20-19,111.55

Finding the Fourth Proportional to 34,218.63, 47,221.20 and 19,111.55

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Solution

The fourth proportional to 34,218.63, 47,221.20 and 19,111.55 is: 26,373.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,218.63 : 47,221.20 = 19,111.55 : x
  2. Step 2: Convert to fraction form
    34,218.63/47,221.20 = 19,111.55/x
  3. Step 3: Cross multiply
    34,218.63x = 47,221.20 × 19,111.55
  4. Step 4: Simplify right side
    34,218.63x = 902,470,088.75
  5. Step 5: Solve for x
    x = 902,470,088.75/34,218.63
  6. Step 6: Final answer
    x = 26,373.65

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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.