Home / 19,742.40-29,619.36-9,210.24

Finding the Fourth Proportional to 19,742.40, 29,619.36 and 9,210.24

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Solution

The fourth proportional to 19,742.40, 29,619.36 and 9,210.24 is: 13,818.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,742.40 : 29,619.36 = 9,210.24 : x
  2. Step 2: Convert to fraction form
    19,742.40/29,619.36 = 9,210.24/x
  3. Step 3: Cross multiply
    19,742.40x = 29,619.36 × 9,210.24
  4. Step 4: Simplify right side
    19,742.40x = 272,801,414.25
  5. Step 5: Solve for x
    x = 272,801,414.25/19,742.40
  6. Step 6: Final answer
    x = 13,818.05

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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.