Home / 30,416.16-41,974.50-16,988.61

Finding the Fourth Proportional to 30,416.16, 41,974.50 and 16,988.61

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Solution

The fourth proportional to 30,416.16, 41,974.50 and 16,988.61 is: 23,444.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,416.16 : 41,974.50 = 16,988.61 : x
  2. Step 2: Convert to fraction form
    30,416.16/41,974.50 = 16,988.61/x
  3. Step 3: Cross multiply
    30,416.16x = 41,974.50 × 16,988.61
  4. Step 4: Simplify right side
    30,416.16x = 713,088,410.45
  5. Step 5: Solve for x
    x = 713,088,410.45/30,416.16
  6. Step 6: Final answer
    x = 23,444.39

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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.