Home / 30,643.51-42,291.99-17,214.76

Finding the Fourth Proportional to 30,643.51, 42,291.99 and 17,214.76

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Solution

The fourth proportional to 30,643.51, 42,291.99 and 17,214.76 is: 23,758.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,643.51 : 42,291.99 = 17,214.76 : x
  2. Step 2: Convert to fraction form
    30,643.51/42,291.99 = 17,214.76/x
  3. Step 3: Cross multiply
    30,643.51x = 42,291.99 × 17,214.76
  4. Step 4: Simplify right side
    30,643.51x = 728,046,457.77
  5. Step 5: Solve for x
    x = 728,046,457.77/30,643.51
  6. Step 6: Final answer
    x = 23,758.59

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Double scale
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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.