Home / 30,854.80-42,579.48-16,707.52

Finding the Fourth Proportional to 30,854.80, 42,579.48 and 16,707.52

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Solution

The fourth proportional to 30,854.80, 42,579.48 and 16,707.52 is: 23,056.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,854.80 : 42,579.48 = 16,707.52 : x
  2. Step 2: Convert to fraction form
    30,854.80/42,579.48 = 16,707.52/x
  3. Step 3: Cross multiply
    30,854.80x = 42,579.48 × 16,707.52
  4. Step 4: Simplify right side
    30,854.80x = 711,397,513.69
  5. Step 5: Solve for x
    x = 711,397,513.69/30,854.80
  6. Step 6: Final answer
    x = 23,056.30

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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.