Home / 21,970.08-32,956.74-7,938.45

Finding the Fourth Proportional to 21,970.08, 32,956.74 and 7,938.45

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Solution

The fourth proportional to 21,970.08, 32,956.74 and 7,938.45 is: 11,908.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,970.08 : 32,956.74 = 7,938.45 : x
  2. Step 2: Convert to fraction form
    21,970.08/32,956.74 = 7,938.45/x
  3. Step 3: Cross multiply
    21,970.08x = 32,956.74 × 7,938.45
  4. Step 4: Simplify right side
    21,970.08x = 261,625,432.65
  5. Step 5: Solve for x
    x = 261,625,432.65/21,970.08
  6. Step 6: Final answer
    x = 11,908.26

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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.