Home / 25,487.96-38,196.32-21,720.08

Finding the Fourth Proportional to 25,487.96, 38,196.32 and 21,720.08

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Solution

The fourth proportional to 25,487.96, 38,196.32 and 21,720.08 is: 32,549.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,487.96 : 38,196.32 = 21,720.08 : x
  2. Step 2: Convert to fraction form
    25,487.96/38,196.32 = 21,720.08/x
  3. Step 3: Cross multiply
    25,487.96x = 38,196.32 × 21,720.08
  4. Step 4: Simplify right side
    25,487.96x = 829,627,126.11
  5. Step 5: Solve for x
    x = 829,627,126.11/25,487.96
  6. Step 6: Final answer
    x = 32,549.77

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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.