Home / 30,837.51-42,555.74-16,690.32

Finding the Fourth Proportional to 30,837.51, 42,555.74 and 16,690.32

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Solution

The fourth proportional to 30,837.51, 42,555.74 and 16,690.32 is: 23,032.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,837.51 : 42,555.74 = 16,690.32 : x
  2. Step 2: Convert to fraction form
    30,837.51/42,555.74 = 16,690.32/x
  3. Step 3: Cross multiply
    30,837.51x = 42,555.74 × 16,690.32
  4. Step 4: Simplify right side
    30,837.51x = 710,268,834.99
  5. Step 5: Solve for x
    x = 710,268,834.99/30,837.51
  6. Step 6: Final answer
    x = 23,032.63

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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.