Home / 21,681.66-32,526.20-7,449.45

Finding the Fourth Proportional to 21,681.66, 32,526.20 and 7,449.45

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Solution

The fourth proportional to 21,681.66, 32,526.20 and 7,449.45 is: 11,175.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,681.66 : 32,526.20 = 7,449.45 : x
  2. Step 2: Convert to fraction form
    21,681.66/32,526.20 = 7,449.45/x
  3. Step 3: Cross multiply
    21,681.66x = 32,526.20 × 7,449.45
  4. Step 4: Simplify right side
    21,681.66x = 242,302,327.82
  5. Step 5: Solve for x
    x = 242,302,327.82/21,681.66
  6. Step 6: Final answer
    x = 11,175.45

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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.