Home / 21,852.36-32,780.70-14,931.72

Finding the Fourth Proportional to 21,852.36, 32,780.70 and 14,931.72

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Solution

The fourth proportional to 21,852.36, 32,780.70 and 14,931.72 is: 22,399.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,852.36 : 32,780.70 = 14,931.72 : x
  2. Step 2: Convert to fraction form
    21,852.36/32,780.70 = 14,931.72/x
  3. Step 3: Cross multiply
    21,852.36x = 32,780.70 × 14,931.72
  4. Step 4: Simplify right side
    21,852.36x = 489,472,233.80
  5. Step 5: Solve for x
    x = 489,472,233.80/21,852.36
  6. Step 6: Final answer
    x = 22,399.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.