Home / 14,420.10-21,581.55-13,253.70

Finding the Fourth Proportional to 14,420.10, 21,581.55 and 13,253.70

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Solution

The fourth proportional to 14,420.10, 21,581.55 and 13,253.70 is: 19,835.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,420.10 : 21,581.55 = 13,253.70 : x
  2. Step 2: Convert to fraction form
    14,420.10/21,581.55 = 13,253.70/x
  3. Step 3: Cross multiply
    14,420.10x = 21,581.55 × 13,253.70
  4. Step 4: Simplify right side
    14,420.10x = 286,035,389.24
  5. Step 5: Solve for x
    x = 286,035,389.24/14,420.10
  6. Step 6: Final answer
    x = 19,835.88

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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.