Home / 30,854.59-42,579.36-16,707.40

Finding the Fourth Proportional to 30,854.59, 42,579.36 and 16,707.40

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Solution

The fourth proportional to 30,854.59, 42,579.36 and 16,707.40 is: 23,056.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,854.59 : 42,579.36 = 16,707.40 : x
  2. Step 2: Convert to fraction form
    30,854.59/42,579.36 = 16,707.40/x
  3. Step 3: Cross multiply
    30,854.59x = 42,579.36 × 16,707.40
  4. Step 4: Simplify right side
    30,854.59x = 711,390,186.37
  5. Step 5: Solve for x
    x = 711,390,186.37/30,854.59
  6. Step 6: Final answer
    x = 23,056.22

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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.