Home / 28,289.41-42,369.53-13,508.74

Finding the Fourth Proportional to 28,289.41, 42,369.53 and 13,508.74

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Solution

The fourth proportional to 28,289.41, 42,369.53 and 13,508.74 is: 20,232.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,289.41 : 42,369.53 = 13,508.74 : x
  2. Step 2: Convert to fraction form
    28,289.41/42,369.53 = 13,508.74/x
  3. Step 3: Cross multiply
    28,289.41x = 42,369.53 × 13,508.74
  4. Step 4: Simplify right side
    28,289.41x = 572,358,897.15
  5. Step 5: Solve for x
    x = 572,358,897.15/28,289.41
  6. Step 6: Final answer
    x = 20,232.27

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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.