Home / 28,347.66-42,530.40-17,115.48

Finding the Fourth Proportional to 28,347.66, 42,530.40 and 17,115.48

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Solution

The fourth proportional to 28,347.66, 42,530.40 and 17,115.48 is: 25,678.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,347.66 : 42,530.40 = 17,115.48 : x
  2. Step 2: Convert to fraction form
    28,347.66/42,530.40 = 17,115.48/x
  3. Step 3: Cross multiply
    28,347.66x = 42,530.40 × 17,115.48
  4. Step 4: Simplify right side
    28,347.66x = 727,928,210.59
  5. Step 5: Solve for x
    x = 727,928,210.59/28,347.66
  6. Step 6: Final answer
    x = 25,678.60

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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.