Home / 30,810.56-42,518.92-16,663.68

Finding the Fourth Proportional to 30,810.56, 42,518.92 and 16,663.68

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Solution

The fourth proportional to 30,810.56, 42,518.92 and 16,663.68 is: 22,996.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,810.56 : 42,518.92 = 16,663.68 : x
  2. Step 2: Convert to fraction form
    30,810.56/42,518.92 = 16,663.68/x
  3. Step 3: Cross multiply
    30,810.56x = 42,518.92 × 16,663.68
  4. Step 4: Simplify right side
    30,810.56x = 708,521,676.83
  5. Step 5: Solve for x
    x = 708,521,676.83/30,810.56
  6. Step 6: Final answer
    x = 22,996.07

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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.