Home / 21,570.03-32,313.56-13,225.70

Finding the Fourth Proportional to 21,570.03, 32,313.56 and 13,225.70

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Solution

The fourth proportional to 21,570.03, 32,313.56 and 13,225.70 is: 19,813.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,570.03 : 32,313.56 = 13,225.70 : x
  2. Step 2: Convert to fraction form
    21,570.03/32,313.56 = 13,225.70/x
  3. Step 3: Cross multiply
    21,570.03x = 32,313.56 × 13,225.70
  4. Step 4: Simplify right side
    21,570.03x = 427,369,465.15
  5. Step 5: Solve for x
    x = 427,369,465.15/21,570.03
  6. Step 6: Final answer
    x = 19,813.11

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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.