Home / 28,421.48-42,577.65-15,903.57

Finding the Fourth Proportional to 28,421.48, 42,577.65 and 15,903.57

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Solution

The fourth proportional to 28,421.48, 42,577.65 and 15,903.57 is: 23,824.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,421.48 : 42,577.65 = 15,903.57 : x
  2. Step 2: Convert to fraction form
    28,421.48/42,577.65 = 15,903.57/x
  3. Step 3: Cross multiply
    28,421.48x = 42,577.65 × 15,903.57
  4. Step 4: Simplify right side
    28,421.48x = 677,136,796.88
  5. Step 5: Solve for x
    x = 677,136,796.88/28,421.48
  6. Step 6: Final answer
    x = 23,824.82

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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.