Home / 19,547.40-29,321.10-18,856.20

Finding the Fourth Proportional to 19,547.40, 29,321.10 and 18,856.20

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Solution

The fourth proportional to 19,547.40, 29,321.10 and 18,856.20 is: 28,284.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,547.40 : 29,321.10 = 18,856.20 : x
  2. Step 2: Convert to fraction form
    19,547.40/29,321.10 = 18,856.20/x
  3. Step 3: Cross multiply
    19,547.40x = 29,321.10 × 18,856.20
  4. Step 4: Simplify right side
    19,547.40x = 552,884,525.82
  5. Step 5: Solve for x
    x = 552,884,525.82/19,547.40
  6. Step 6: Final answer
    x = 28,284.30

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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.