Home / 21,657.06-29,877.84-14,585.76

Finding the Fourth Proportional to 21,657.06, 29,877.84 and 14,585.76

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Solution

The fourth proportional to 21,657.06, 29,877.84 and 14,585.76 is: 20,122.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,657.06 : 29,877.84 = 14,585.76 : x
  2. Step 2: Convert to fraction form
    21,657.06/29,877.84 = 14,585.76/x
  3. Step 3: Cross multiply
    21,657.06x = 29,877.84 × 14,585.76
  4. Step 4: Simplify right side
    21,657.06x = 435,791,003.56
  5. Step 5: Solve for x
    x = 435,791,003.56/21,657.06
  6. Step 6: Final answer
    x = 20,122.35

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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.