Home / 14,171.55-21,363.47-13,220.07

Finding the Fourth Proportional to 14,171.55, 21,363.47 and 13,220.07

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Solution

The fourth proportional to 14,171.55, 21,363.47 and 13,220.07 is: 19,929.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,171.55 : 21,363.47 = 13,220.07 : x
  2. Step 2: Convert to fraction form
    14,171.55/21,363.47 = 13,220.07/x
  3. Step 3: Cross multiply
    14,171.55x = 21,363.47 × 13,220.07
  4. Step 4: Simplify right side
    14,171.55x = 282,426,502.74
  5. Step 5: Solve for x
    x = 282,426,502.74/14,171.55
  6. Step 6: Final answer
    x = 19,929.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.