Home / 19,823.68-29,730.56-8,140.16

Finding the Fourth Proportional to 19,823.68, 29,730.56 and 8,140.16

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Solution

The fourth proportional to 19,823.68, 29,730.56 and 8,140.16 is: 12,208.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,823.68 : 29,730.56 = 8,140.16 : x
  2. Step 2: Convert to fraction form
    19,823.68/29,730.56 = 8,140.16/x
  3. Step 3: Cross multiply
    19,823.68x = 29,730.56 × 8,140.16
  4. Step 4: Simplify right side
    19,823.68x = 242,011,515.29
  5. Step 5: Solve for x
    x = 242,011,515.29/19,823.68
  6. Step 6: Final answer
    x = 12,208.20

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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.