Home / 30,117.36-41,561.28-16,688.64

Finding the Fourth Proportional to 30,117.36, 41,561.28 and 16,688.64

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Solution

The fourth proportional to 30,117.36, 41,561.28 and 16,688.64 is: 23,029.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,117.36 : 41,561.28 = 16,688.64 : x
  2. Step 2: Convert to fraction form
    30,117.36/41,561.28 = 16,688.64/x
  3. Step 3: Cross multiply
    30,117.36x = 41,561.28 × 16,688.64
  4. Step 4: Simplify right side
    30,117.36x = 693,601,239.86
  5. Step 5: Solve for x
    x = 693,601,239.86/30,117.36
  6. Step 6: Final answer
    x = 23,029.95

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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.