Home / 28,250.34-42,383.70-15,779.64

Finding the Fourth Proportional to 28,250.34, 42,383.70 and 15,779.64

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Solution

The fourth proportional to 28,250.34, 42,383.70 and 15,779.64 is: 23,674.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,250.34 : 42,383.70 = 15,779.64 : x
  2. Step 2: Convert to fraction form
    28,250.34/42,383.70 = 15,779.64/x
  3. Step 3: Cross multiply
    28,250.34x = 42,383.70 × 15,779.64
  4. Step 4: Simplify right side
    28,250.34x = 668,799,686.81
  5. Step 5: Solve for x
    x = 668,799,686.81/28,250.34
  6. Step 6: Final answer
    x = 23,674.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.