Home / 13,570.64-20,354.98-4,210.41

Finding the Fourth Proportional to 13,570.64, 20,354.98 and 4,210.41

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Solution

The fourth proportional to 13,570.64, 20,354.98 and 4,210.41 is: 6,315.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,570.64 : 20,354.98 = 4,210.41 : x
  2. Step 2: Convert to fraction form
    13,570.64/20,354.98 = 4,210.41/x
  3. Step 3: Cross multiply
    13,570.64x = 20,354.98 × 4,210.41
  4. Step 4: Simplify right side
    13,570.64x = 85,702,811.34
  5. Step 5: Solve for x
    x = 85,702,811.34/13,570.64
  6. Step 6: Final answer
    x = 6,315.31

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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.