Home / 21,486.66-32,279.40-15,261.81

Finding the Fourth Proportional to 21,486.66, 32,279.40 and 15,261.81

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Solution

The fourth proportional to 21,486.66, 32,279.40 and 15,261.81 is: 22,927.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,486.66 : 32,279.40 = 15,261.81 : x
  2. Step 2: Convert to fraction form
    21,486.66/32,279.40 = 15,261.81/x
  3. Step 3: Cross multiply
    21,486.66x = 32,279.40 × 15,261.81
  4. Step 4: Simplify right side
    21,486.66x = 492,642,069.71
  5. Step 5: Solve for x
    x = 492,642,069.71/21,486.66
  6. Step 6: Final answer
    x = 22,927.81

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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.