Home / 30,881.10-42,618.08-17,453.58

Finding the Fourth Proportional to 30,881.10, 42,618.08 and 17,453.58

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Solution

The fourth proportional to 30,881.10, 42,618.08 and 17,453.58 is: 24,087.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,881.10 : 42,618.08 = 17,453.58 : x
  2. Step 2: Convert to fraction form
    30,881.10/42,618.08 = 17,453.58/x
  3. Step 3: Cross multiply
    30,881.10x = 42,618.08 × 17,453.58
  4. Step 4: Simplify right side
    30,881.10x = 743,837,981.46
  5. Step 5: Solve for x
    x = 743,837,981.46/30,881.10
  6. Step 6: Final answer
    x = 24,087.16

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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.