Home / 21,595.67-32,320.35-13,280.96

Finding the Fourth Proportional to 21,595.67, 32,320.35 and 13,280.96

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Solution

The fourth proportional to 21,595.67, 32,320.35 and 13,280.96 is: 19,876.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,595.67 : 32,320.35 = 13,280.96 : x
  2. Step 2: Convert to fraction form
    21,595.67/32,320.35 = 13,280.96/x
  3. Step 3: Cross multiply
    21,595.67x = 32,320.35 × 13,280.96
  4. Step 4: Simplify right side
    21,595.67x = 429,245,113.93
  5. Step 5: Solve for x
    x = 429,245,113.93/21,595.67
  6. Step 6: Final answer
    x = 19,876.45

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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.