Home / 21,615.39-32,395.75-11,595.29

Finding the Fourth Proportional to 21,615.39, 32,395.75 and 11,595.29

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Solution

The fourth proportional to 21,615.39, 32,395.75 and 11,595.29 is: 17,378.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,615.39 : 32,395.75 = 11,595.29 : x
  2. Step 2: Convert to fraction form
    21,615.39/32,395.75 = 11,595.29/x
  3. Step 3: Cross multiply
    21,615.39x = 32,395.75 × 11,595.29
  4. Step 4: Simplify right side
    21,615.39x = 375,637,925.05
  5. Step 5: Solve for x
    x = 375,637,925.05/21,615.39
  6. Step 6: Final answer
    x = 17,378.26

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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.