Home / 30,950.51-42,710.54-16,803.05

Finding the Fourth Proportional to 30,950.51, 42,710.54 and 16,803.05

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Solution

The fourth proportional to 30,950.51, 42,710.54 and 16,803.05 is: 23,187.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,950.51 : 42,710.54 = 16,803.05 : x
  2. Step 2: Convert to fraction form
    30,950.51/42,710.54 = 16,803.05/x
  3. Step 3: Cross multiply
    30,950.51x = 42,710.54 × 16,803.05
  4. Step 4: Simplify right side
    30,950.51x = 717,667,041.58
  5. Step 5: Solve for x
    x = 717,667,041.58/30,950.51
  6. Step 6: Final answer
    x = 23,187.57

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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.