Home / 28,073.16-38,739.86-15,497.80

Finding the Fourth Proportional to 28,073.16, 38,739.86 and 15,497.80

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Solution

The fourth proportional to 28,073.16, 38,739.86 and 15,497.80 is: 21,386.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,073.16 : 38,739.86 = 15,497.80 : x
  2. Step 2: Convert to fraction form
    28,073.16/38,739.86 = 15,497.80/x
  3. Step 3: Cross multiply
    28,073.16x = 38,739.86 × 15,497.80
  4. Step 4: Simplify right side
    28,073.16x = 600,382,602.31
  5. Step 5: Solve for x
    x = 600,382,602.31/28,073.16
  6. Step 6: Final answer
    x = 21,386.36

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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.