Home / 28,301.40-39,054.96-15,725.52

Finding the Fourth Proportional to 28,301.40, 39,054.96 and 15,725.52

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Solution

The fourth proportional to 28,301.40, 39,054.96 and 15,725.52 is: 21,700.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,301.40 : 39,054.96 = 15,725.52 : x
  2. Step 2: Convert to fraction form
    28,301.40/39,054.96 = 15,725.52/x
  3. Step 3: Cross multiply
    28,301.40x = 39,054.96 × 15,725.52
  4. Step 4: Simplify right side
    28,301.40x = 614,159,554.58
  5. Step 5: Solve for x
    x = 614,159,554.58/28,301.40
  6. Step 6: Final answer
    x = 21,700.68

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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.