Home / 30,745.17-42,428.48-17,316.65

Finding the Fourth Proportional to 30,745.17, 42,428.48 and 17,316.65

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Solution

The fourth proportional to 30,745.17, 42,428.48 and 17,316.65 is: 23,897.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,745.17 : 42,428.48 = 17,316.65 : x
  2. Step 2: Convert to fraction form
    30,745.17/42,428.48 = 17,316.65/x
  3. Step 3: Cross multiply
    30,745.17x = 42,428.48 × 17,316.65
  4. Step 4: Simplify right side
    30,745.17x = 734,718,839.47
  5. Step 5: Solve for x
    x = 734,718,839.47/30,745.17
  6. Step 6: Final answer
    x = 23,897.05

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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.