Home / 30,903.93-42,645.96-16,756.47

Finding the Fourth Proportional to 30,903.93, 42,645.96 and 16,756.47

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Solution

The fourth proportional to 30,903.93, 42,645.96 and 16,756.47 is: 23,123.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,903.93 : 42,645.96 = 16,756.47 : x
  2. Step 2: Convert to fraction form
    30,903.93/42,645.96 = 16,756.47/x
  3. Step 3: Cross multiply
    30,903.93x = 42,645.96 × 16,756.47
  4. Step 4: Simplify right side
    30,903.93x = 714,595,749.36
  5. Step 5: Solve for x
    x = 714,595,749.36/30,903.93
  6. Step 6: Final answer
    x = 23,123.14

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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.