Home / 30,953.46-42,716.64-16,807.20

Finding the Fourth Proportional to 30,953.46, 42,716.64 and 16,807.20

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Solution

The fourth proportional to 30,953.46, 42,716.64 and 16,807.20 is: 23,194.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,953.46 : 42,716.64 = 16,807.20 : x
  2. Step 2: Convert to fraction form
    30,953.46/42,716.64 = 16,807.20/x
  3. Step 3: Cross multiply
    30,953.46x = 42,716.64 × 16,807.20
  4. Step 4: Simplify right side
    30,953.46x = 717,947,111.81
  5. Step 5: Solve for x
    x = 717,947,111.81/30,953.46
  6. Step 6: Final answer
    x = 23,194.41

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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.