Home / 19,869.60-27,398.88-14,203.20

Finding the Fourth Proportional to 19,869.60, 27,398.88 and 14,203.20

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Solution

The fourth proportional to 19,869.60, 27,398.88 and 14,203.20 is: 19,585.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,869.60 : 27,398.88 = 14,203.20 : x
  2. Step 2: Convert to fraction form
    19,869.60/27,398.88 = 14,203.20/x
  3. Step 3: Cross multiply
    19,869.60x = 27,398.88 × 14,203.20
  4. Step 4: Simplify right side
    19,869.60x = 389,151,772.42
  5. Step 5: Solve for x
    x = 389,151,772.42/19,869.60
  6. Step 6: Final answer
    x = 19,585.28

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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.