Home / 28,408.02-42,575.22-13,587.90

Finding the Fourth Proportional to 28,408.02, 42,575.22 and 13,587.90

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Solution

The fourth proportional to 28,408.02, 42,575.22 and 13,587.90 is: 20,364.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,408.02 : 42,575.22 = 13,587.90 : x
  2. Step 2: Convert to fraction form
    28,408.02/42,575.22 = 13,587.90/x
  3. Step 3: Cross multiply
    28,408.02x = 42,575.22 × 13,587.90
  4. Step 4: Simplify right side
    28,408.02x = 578,507,831.84
  5. Step 5: Solve for x
    x = 578,507,831.84/28,408.02
  6. Step 6: Final answer
    x = 20,364.24

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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.