Home / 30,884.81-42,621.08-16,737.66

Finding the Fourth Proportional to 30,884.81, 42,621.08 and 16,737.66

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Solution

The fourth proportional to 30,884.81, 42,621.08 and 16,737.66 is: 23,097.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,884.81 : 42,621.08 = 16,737.66 : x
  2. Step 2: Convert to fraction form
    30,884.81/42,621.08 = 16,737.66/x
  3. Step 3: Cross multiply
    30,884.81x = 42,621.08 × 16,737.66
  4. Step 4: Simplify right side
    30,884.81x = 713,376,965.12
  5. Step 5: Solve for x
    x = 713,376,965.12/30,884.81
  6. Step 6: Final answer
    x = 23,097.99

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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.