Home / 30,903.72-42,647.24-16,756.58

Finding the Fourth Proportional to 30,903.72, 42,647.24 and 16,756.58

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Solution

The fourth proportional to 30,903.72, 42,647.24 and 16,756.58 is: 23,124.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,903.72 : 42,647.24 = 16,756.58 : x
  2. Step 2: Convert to fraction form
    30,903.72/42,647.24 = 16,756.58/x
  3. Step 3: Cross multiply
    30,903.72x = 42,647.24 × 16,756.58
  4. Step 4: Simplify right side
    30,903.72x = 714,621,888.84
  5. Step 5: Solve for x
    x = 714,621,888.84/30,903.72
  6. Step 6: Final answer
    x = 23,124.14

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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.