Home / 30,887.51-42,624.78-16,740.35

Finding the Fourth Proportional to 30,887.51, 42,624.78 and 16,740.35

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Solution

The fourth proportional to 30,887.51, 42,624.78 and 16,740.35 is: 23,101.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,887.51 : 42,624.78 = 16,740.35 : x
  2. Step 2: Convert to fraction form
    30,887.51/42,624.78 = 16,740.35/x
  3. Step 3: Cross multiply
    30,887.51x = 42,624.78 × 16,740.35
  4. Step 4: Simplify right side
    30,887.51x = 713,553,735.87
  5. Step 5: Solve for x
    x = 713,553,735.87/30,887.51
  6. Step 6: Final answer
    x = 23,101.69

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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.