Home / 21,215.36-29,253.60-14,502.08

Finding the Fourth Proportional to 21,215.36, 29,253.60 and 14,502.08

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Solution

The fourth proportional to 21,215.36, 29,253.60 and 14,502.08 is: 19,996.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,215.36 : 29,253.60 = 14,502.08 : x
  2. Step 2: Convert to fraction form
    21,215.36/29,253.60 = 14,502.08/x
  3. Step 3: Cross multiply
    21,215.36x = 29,253.60 × 14,502.08
  4. Step 4: Simplify right side
    21,215.36x = 424,238,047.49
  5. Step 5: Solve for x
    x = 424,238,047.49/21,215.36
  6. Step 6: Final answer
    x = 19,996.74

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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.