Home / 15,038.10-20,705.04-13,244.34

Finding the Fourth Proportional to 15,038.10, 20,705.04 and 13,244.34

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Solution

The fourth proportional to 15,038.10, 20,705.04 and 13,244.34 is: 18,235.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,038.10 : 20,705.04 = 13,244.34 : x
  2. Step 2: Convert to fraction form
    15,038.10/20,705.04 = 13,244.34/x
  3. Step 3: Cross multiply
    15,038.10x = 20,705.04 × 13,244.34
  4. Step 4: Simplify right side
    15,038.10x = 274,224,589.47
  5. Step 5: Solve for x
    x = 274,224,589.47/15,038.10
  6. Step 6: Final answer
    x = 18,235.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.