Home / 30,417.55-41,975.78-16,989.00

Finding the Fourth Proportional to 30,417.55, 41,975.78 and 16,989.00

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Solution

The fourth proportional to 30,417.55, 41,975.78 and 16,989.00 is: 23,444.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,417.55 : 41,975.78 = 16,989.00 : x
  2. Step 2: Convert to fraction form
    30,417.55/41,975.78 = 16,989.00/x
  3. Step 3: Cross multiply
    30,417.55x = 41,975.78 × 16,989.00
  4. Step 4: Simplify right side
    30,417.55x = 713,126,284.07
  5. Step 5: Solve for x
    x = 713,126,284.07/30,417.55
  6. Step 6: Final answer
    x = 23,444.57

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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.