Home / 30,837.13-42,555.55-16,690.27

Finding the Fourth Proportional to 30,837.13, 42,555.55 and 16,690.27

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Solution

The fourth proportional to 30,837.13, 42,555.55 and 16,690.27 is: 23,032.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,837.13 : 42,555.55 = 16,690.27 : x
  2. Step 2: Convert to fraction form
    30,837.13/42,555.55 = 16,690.27/x
  3. Step 3: Cross multiply
    30,837.13x = 42,555.55 × 16,690.27
  4. Step 4: Simplify right side
    30,837.13x = 710,263,619.50
  5. Step 5: Solve for x
    x = 710,263,619.50/30,837.13
  6. Step 6: Final answer
    x = 23,032.74

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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.