Home / 28,304.84-39,062.10-15,730.76

Finding the Fourth Proportional to 28,304.84, 39,062.10 and 15,730.76

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Solution

The fourth proportional to 28,304.84, 39,062.10 and 15,730.76 is: 21,709.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,304.84 : 39,062.10 = 15,730.76 : x
  2. Step 2: Convert to fraction form
    28,304.84/39,062.10 = 15,730.76/x
  3. Step 3: Cross multiply
    28,304.84x = 39,062.10 × 15,730.76
  4. Step 4: Simplify right side
    28,304.84x = 614,476,520.20
  5. Step 5: Solve for x
    x = 614,476,520.20/28,304.84
  6. Step 6: Final answer
    x = 21,709.24

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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.