Home / 28,429.24-42,616.32-15,955.24

Finding the Fourth Proportional to 28,429.24, 42,616.32 and 15,955.24

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Solution

The fourth proportional to 28,429.24, 42,616.32 and 15,955.24 is: 23,917.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,429.24 : 42,616.32 = 15,955.24 : x
  2. Step 2: Convert to fraction form
    28,429.24/42,616.32 = 15,955.24/x
  3. Step 3: Cross multiply
    28,429.24x = 42,616.32 × 15,955.24
  4. Step 4: Simplify right side
    28,429.24x = 679,953,613.52
  5. Step 5: Solve for x
    x = 679,953,613.52/28,429.24
  6. Step 6: Final answer
    x = 23,917.40

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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.