Home / 21,730.60-32,547.30-11,330.20

Finding the Fourth Proportional to 21,730.60, 32,547.30 and 11,330.20

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Solution

The fourth proportional to 21,730.60, 32,547.30 and 11,330.20 is: 16,969.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,730.60 : 32,547.30 = 11,330.20 : x
  2. Step 2: Convert to fraction form
    21,730.60/32,547.30 = 11,330.20/x
  3. Step 3: Cross multiply
    21,730.60x = 32,547.30 × 11,330.20
  4. Step 4: Simplify right side
    21,730.60x = 368,767,418.46
  5. Step 5: Solve for x
    x = 368,767,418.46/21,730.60
  6. Step 6: Final answer
    x = 16,969.96

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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.