Home / 30,925.26-42,677.10-16,778.16

Finding the Fourth Proportional to 30,925.26, 42,677.10 and 16,778.16

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Solution

The fourth proportional to 30,925.26, 42,677.10 and 16,778.16 is: 23,153.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,925.26 : 42,677.10 = 16,778.16 : x
  2. Step 2: Convert to fraction form
    30,925.26/42,677.10 = 16,778.16/x
  3. Step 3: Cross multiply
    30,925.26x = 42,677.10 × 16,778.16
  4. Step 4: Simplify right side
    30,925.26x = 716,043,212.14
  5. Step 5: Solve for x
    x = 716,043,212.14/30,925.26
  6. Step 6: Final answer
    x = 23,153.99

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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.