Home / 28,646.16-42,946.92-13,645.56

Finding the Fourth Proportional to 28,646.16, 42,946.92 and 13,645.56

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Solution

The fourth proportional to 28,646.16, 42,946.92 and 13,645.56 is: 20,457.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,646.16 : 42,946.92 = 13,645.56 : x
  2. Step 2: Convert to fraction form
    28,646.16/42,946.92 = 13,645.56/x
  3. Step 3: Cross multiply
    28,646.16x = 42,946.92 × 13,645.56
  4. Step 4: Simplify right side
    28,646.16x = 586,034,773.68
  5. Step 5: Solve for x
    x = 586,034,773.68/28,646.16
  6. Step 6: Final answer
    x = 20,457.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.