Home / 21,595.79-32,320.53-13,281.08

Finding the Fourth Proportional to 21,595.79, 32,320.53 and 13,281.08

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Solution

The fourth proportional to 21,595.79, 32,320.53 and 13,281.08 is: 19,876.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,595.79 : 32,320.53 = 13,281.08 : x
  2. Step 2: Convert to fraction form
    21,595.79/32,320.53 = 13,281.08/x
  3. Step 3: Cross multiply
    21,595.79x = 32,320.53 × 13,281.08
  4. Step 4: Simplify right side
    21,595.79x = 429,251,544.57
  5. Step 5: Solve for x
    x = 429,251,544.57/21,595.79
  6. Step 6: Final answer
    x = 19,876.63

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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.