Home / 28,108.40-42,162.60-26,812.40

Finding the Fourth Proportional to 28,108.40, 42,162.60 and 26,812.40

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Solution

The fourth proportional to 28,108.40, 42,162.60 and 26,812.40 is: 40,218.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,108.40 : 42,162.60 = 26,812.40 : x
  2. Step 2: Convert to fraction form
    28,108.40/42,162.60 = 26,812.40/x
  3. Step 3: Cross multiply
    28,108.40x = 42,162.60 × 26,812.40
  4. Step 4: Simplify right side
    28,108.40x = 1,130,480,496.24
  5. Step 5: Solve for x
    x = 1,130,480,496.24/28,108.40
  6. Step 6: Final answer
    x = 40,218.60

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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.