Home / 34,218.71-47,221.31-19,111.20

Finding the Fourth Proportional to 34,218.71, 47,221.31 and 19,111.20

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Solution

The fourth proportional to 34,218.71, 47,221.31 and 19,111.20 is: 26,373.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,218.71 : 47,221.31 = 19,111.20 : x
  2. Step 2: Convert to fraction form
    34,218.71/47,221.31 = 19,111.20/x
  3. Step 3: Cross multiply
    34,218.71x = 47,221.31 × 19,111.20
  4. Step 4: Simplify right side
    34,218.71x = 902,455,804.12
  5. Step 5: Solve for x
    x = 902,455,804.12/34,218.71
  6. Step 6: Final answer
    x = 26,373.17

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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.