Home / 30,975.49-42,746.34-16,828.36

Finding the Fourth Proportional to 30,975.49, 42,746.34 and 16,828.36

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Solution

The fourth proportional to 30,975.49, 42,746.34 and 16,828.36 is: 23,223.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,975.49 : 42,746.34 = 16,828.36 : x
  2. Step 2: Convert to fraction form
    30,975.49/42,746.34 = 16,828.36/x
  3. Step 3: Cross multiply
    30,975.49x = 42,746.34 × 16,828.36
  4. Step 4: Simplify right side
    30,975.49x = 719,350,798.20
  5. Step 5: Solve for x
    x = 719,350,798.20/30,975.49
  6. Step 6: Final answer
    x = 23,223.23

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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.