Home / 28,041.12-38,695.67-15,465.87

Finding the Fourth Proportional to 28,041.12, 38,695.67 and 15,465.87

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Solution

The fourth proportional to 28,041.12, 38,695.67 and 15,465.87 is: 21,342.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,041.12 : 38,695.67 = 15,465.87 : x
  2. Step 2: Convert to fraction form
    28,041.12/38,695.67 = 15,465.87/x
  3. Step 3: Cross multiply
    28,041.12x = 38,695.67 × 15,465.87
  4. Step 4: Simplify right side
    28,041.12x = 598,462,124.45
  5. Step 5: Solve for x
    x = 598,462,124.45/28,041.12
  6. Step 6: Final answer
    x = 21,342.30

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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.