Home / 21,374.40-29,485.92-14,301.12

Finding the Fourth Proportional to 21,374.40, 29,485.92 and 14,301.12

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Solution

The fourth proportional to 21,374.40, 29,485.92 and 14,301.12 is: 19,728.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,374.40 : 29,485.92 = 14,301.12 : x
  2. Step 2: Convert to fraction form
    21,374.40/29,485.92 = 14,301.12/x
  3. Step 3: Cross multiply
    21,374.40x = 29,485.92 × 14,301.12
  4. Step 4: Simplify right side
    21,374.40x = 421,681,680.23
  5. Step 5: Solve for x
    x = 421,681,680.23/21,374.40
  6. Step 6: Final answer
    x = 19,728.35

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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.