Home / 39,428.63-59,142.96-11,726.63

Finding the Fourth Proportional to 39,428.63, 59,142.96 and 11,726.63

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Solution

The fourth proportional to 39,428.63, 59,142.96 and 11,726.63 is: 17,589.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,428.63 : 59,142.96 = 11,726.63 : x
  2. Step 2: Convert to fraction form
    39,428.63/59,142.96 = 11,726.63/x
  3. Step 3: Cross multiply
    39,428.63x = 59,142.96 × 11,726.63
  4. Step 4: Simplify right side
    39,428.63x = 693,547,609.02
  5. Step 5: Solve for x
    x = 693,547,609.02/39,428.63
  6. Step 6: Final answer
    x = 17,589.95

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Double scale
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Similar ratio
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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.