Home / 21,507.12-32,271.64-9,818.84

Finding the Fourth Proportional to 21,507.12, 32,271.64 and 9,818.84

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Solution

The fourth proportional to 21,507.12, 32,271.64 and 9,818.84 is: 14,733.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,507.12 : 32,271.64 = 9,818.84 : x
  2. Step 2: Convert to fraction form
    21,507.12/32,271.64 = 9,818.84/x
  3. Step 3: Cross multiply
    21,507.12x = 32,271.64 × 9,818.84
  4. Step 4: Simplify right side
    21,507.12x = 316,870,069.70
  5. Step 5: Solve for x
    x = 316,870,069.70/21,507.12
  6. Step 6: Final answer
    x = 14,733.26

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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.