Home / 46,422.40-69,636.56-13,145.09

Finding the Fourth Proportional to 46,422.40, 69,636.56 and 13,145.09

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Solution

The fourth proportional to 46,422.40, 69,636.56 and 13,145.09 is: 19,718.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,422.40 : 69,636.56 = 13,145.09 : x
  2. Step 2: Convert to fraction form
    46,422.40/69,636.56 = 13,145.09/x
  3. Step 3: Cross multiply
    46,422.40x = 69,636.56 × 13,145.09
  4. Step 4: Simplify right side
    46,422.40x = 915,378,848.49
  5. Step 5: Solve for x
    x = 915,378,848.49/46,422.40
  6. Step 6: Final answer
    x = 19,718.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.