Home / 30,686.07-42,346.36-17,257.32

Finding the Fourth Proportional to 30,686.07, 42,346.36 and 17,257.32

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Solution

The fourth proportional to 30,686.07, 42,346.36 and 17,257.32 is: 23,814.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,686.07 : 42,346.36 = 17,257.32 : x
  2. Step 2: Convert to fraction form
    30,686.07/42,346.36 = 17,257.32/x
  3. Step 3: Cross multiply
    30,686.07x = 42,346.36 × 17,257.32
  4. Step 4: Simplify right side
    30,686.07x = 730,784,685.36
  5. Step 5: Solve for x
    x = 730,784,685.36/30,686.07
  6. Step 6: Final answer
    x = 23,814.87

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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.