Home / 30,844.40-42,565.32-16,697.21

Finding the Fourth Proportional to 30,844.40, 42,565.32 and 16,697.21

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Solution

The fourth proportional to 30,844.40, 42,565.32 and 16,697.21 is: 23,042.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,844.40 : 42,565.32 = 16,697.21 : x
  2. Step 2: Convert to fraction form
    30,844.40/42,565.32 = 16,697.21/x
  3. Step 3: Cross multiply
    30,844.40x = 42,565.32 × 16,697.21
  4. Step 4: Simplify right side
    30,844.40x = 710,721,873.93
  5. Step 5: Solve for x
    x = 710,721,873.93/30,844.40
  6. Step 6: Final answer
    x = 23,042.17

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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.