Home / 28,012.16-38,661.76-17,937.60

Finding the Fourth Proportional to 28,012.16, 38,661.76 and 17,937.60

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Solution

The fourth proportional to 28,012.16, 38,661.76 and 17,937.60 is: 24,757.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,012.16 : 38,661.76 = 17,937.60 : x
  2. Step 2: Convert to fraction form
    28,012.16/38,661.76 = 17,937.60/x
  3. Step 3: Cross multiply
    28,012.16x = 38,661.76 × 17,937.60
  4. Step 4: Simplify right side
    28,012.16x = 693,499,186.18
  5. Step 5: Solve for x
    x = 693,499,186.18/28,012.16
  6. Step 6: Final answer
    x = 24,757.08

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1.5x scale

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.