Home / 21,259.36-31,854.48-12,502.24

Finding the Fourth Proportional to 21,259.36, 31,854.48 and 12,502.24

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Solution

The fourth proportional to 21,259.36, 31,854.48 and 12,502.24 is: 18,733.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,259.36 : 31,854.48 = 12,502.24 : x
  2. Step 2: Convert to fraction form
    21,259.36/31,854.48 = 12,502.24/x
  3. Step 3: Cross multiply
    21,259.36x = 31,854.48 × 12,502.24
  4. Step 4: Simplify right side
    21,259.36x = 398,252,354.04
  5. Step 5: Solve for x
    x = 398,252,354.04/21,259.36
  6. Step 6: Final answer
    x = 18,733.04

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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.