Home / 28,256.92-42,390.86-10,739.08

Finding the Fourth Proportional to 28,256.92, 42,390.86 and 10,739.08

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Solution

The fourth proportional to 28,256.92, 42,390.86 and 10,739.08 is: 16,110.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,256.92 : 42,390.86 = 10,739.08 : x
  2. Step 2: Convert to fraction form
    28,256.92/42,390.86 = 10,739.08/x
  3. Step 3: Cross multiply
    28,256.92x = 42,390.86 × 10,739.08
  4. Step 4: Simplify right side
    28,256.92x = 455,238,836.81
  5. Step 5: Solve for x
    x = 455,238,836.81/28,256.92
  6. Step 6: Final answer
    x = 16,110.70

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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.