Home / 30,837.27-42,555.43-16,690.11

Finding the Fourth Proportional to 30,837.27, 42,555.43 and 16,690.11

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Solution

The fourth proportional to 30,837.27, 42,555.43 and 16,690.11 is: 23,032.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,837.27 : 42,555.43 = 16,690.11 : x
  2. Step 2: Convert to fraction form
    30,837.27/42,555.43 = 16,690.11/x
  3. Step 3: Cross multiply
    30,837.27x = 42,555.43 × 16,690.11
  4. Step 4: Simplify right side
    30,837.27x = 710,254,807.80
  5. Step 5: Solve for x
    x = 710,254,807.80/30,837.27
  6. Step 6: Final answer
    x = 23,032.35

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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.