Home / 21,378.15-32,064.21-7,337.93

Finding the Fourth Proportional to 21,378.15, 32,064.21 and 7,337.93

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Solution

The fourth proportional to 21,378.15, 32,064.21 and 7,337.93 is: 11,005.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,378.15 : 32,064.21 = 7,337.93 : x
  2. Step 2: Convert to fraction form
    21,378.15/32,064.21 = 7,337.93/x
  3. Step 3: Cross multiply
    21,378.15x = 32,064.21 × 7,337.93
  4. Step 4: Simplify right side
    21,378.15x = 235,284,928.49
  5. Step 5: Solve for x
    x = 235,284,928.49/21,378.15
  6. Step 6: Final answer
    x = 11,005.86

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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.