Home / 28,256.20-42,332.62-13,235.74

Finding the Fourth Proportional to 28,256.20, 42,332.62 and 13,235.74

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Solution

The fourth proportional to 28,256.20, 42,332.62 and 13,235.74 is: 19,829.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,256.20 : 42,332.62 = 13,235.74 : x
  2. Step 2: Convert to fraction form
    28,256.20/42,332.62 = 13,235.74/x
  3. Step 3: Cross multiply
    28,256.20x = 42,332.62 × 13,235.74
  4. Step 4: Simplify right side
    28,256.20x = 560,303,551.84
  5. Step 5: Solve for x
    x = 560,303,551.84/28,256.20
  6. Step 6: Final answer
    x = 19,829.40

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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.