Home / 28,250.24-38,985.60-15,676.16

Finding the Fourth Proportional to 28,250.24, 38,985.60 and 15,676.16

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Solution

The fourth proportional to 28,250.24, 38,985.60 and 15,676.16 is: 21,633.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,250.24 : 38,985.60 = 15,676.16 : x
  2. Step 2: Convert to fraction form
    28,250.24/38,985.60 = 15,676.16/x
  3. Step 3: Cross multiply
    28,250.24x = 38,985.60 × 15,676.16
  4. Step 4: Simplify right side
    28,250.24x = 611,144,503.30
  5. Step 5: Solve for x
    x = 611,144,503.30/28,250.24
  6. Step 6: Final answer
    x = 21,633.25

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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.