Home / 28,302.12-39,055.14-15,726.12

Finding the Fourth Proportional to 28,302.12, 39,055.14 and 15,726.12

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Solution

The fourth proportional to 28,302.12, 39,055.14 and 15,726.12 is: 21,701.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,302.12 : 39,055.14 = 15,726.12 : x
  2. Step 2: Convert to fraction form
    28,302.12/39,055.14 = 15,726.12/x
  3. Step 3: Cross multiply
    28,302.12x = 39,055.14 × 15,726.12
  4. Step 4: Simplify right side
    28,302.12x = 614,185,818.26
  5. Step 5: Solve for x
    x = 614,185,818.26/28,302.12
  6. Step 6: Final answer
    x = 21,701.05

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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.