Home / 30,945.36-42,703.92-16,798.08

Finding the Fourth Proportional to 30,945.36, 42,703.92 and 16,798.08

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Solution

The fourth proportional to 30,945.36, 42,703.92 and 16,798.08 is: 23,180.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,945.36 : 42,703.92 = 16,798.08 : x
  2. Step 2: Convert to fraction form
    30,945.36/42,703.92 = 16,798.08/x
  3. Step 3: Cross multiply
    30,945.36x = 42,703.92 × 16,798.08
  4. Step 4: Simplify right side
    30,945.36x = 717,343,864.47
  5. Step 5: Solve for x
    x = 717,343,864.47/30,945.36
  6. Step 6: Final answer
    x = 23,180.98

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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.