Home / 28,175.10-38,877.57-15,599.82

Finding the Fourth Proportional to 28,175.10, 38,877.57 and 15,599.82

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Solution

The fourth proportional to 28,175.10, 38,877.57 and 15,599.82 is: 21,525.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,175.10 : 38,877.57 = 15,599.82 : x
  2. Step 2: Convert to fraction form
    28,175.10/38,877.57 = 15,599.82/x
  3. Step 3: Cross multiply
    28,175.10x = 38,877.57 × 15,599.82
  4. Step 4: Simplify right side
    28,175.10x = 606,483,094.04
  5. Step 5: Solve for x
    x = 606,483,094.04/28,175.10
  6. Step 6: Final answer
    x = 21,525.50

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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.