Home / 28,618.10-39,493.08-15,872.46

Finding the Fourth Proportional to 28,618.10, 39,493.08 and 15,872.46

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Solution

The fourth proportional to 28,618.10, 39,493.08 and 15,872.46 is: 21,904.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,618.10 : 39,493.08 = 15,872.46 : x
  2. Step 2: Convert to fraction form
    28,618.10/39,493.08 = 15,872.46/x
  3. Step 3: Cross multiply
    28,618.10x = 39,493.08 × 15,872.46
  4. Step 4: Simplify right side
    28,618.10x = 626,852,332.58
  5. Step 5: Solve for x
    x = 626,852,332.58/28,618.10
  6. Step 6: Final answer
    x = 21,904.05

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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.