Home / 19,435.68-29,158.56-8,340.48

Finding the Fourth Proportional to 19,435.68, 29,158.56 and 8,340.48

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Solution

The fourth proportional to 19,435.68, 29,158.56 and 8,340.48 is: 12,512.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,435.68 : 29,158.56 = 8,340.48 : x
  2. Step 2: Convert to fraction form
    19,435.68/29,158.56 = 8,340.48/x
  3. Step 3: Cross multiply
    19,435.68x = 29,158.56 × 8,340.48
  4. Step 4: Simplify right side
    19,435.68x = 243,196,386.51
  5. Step 5: Solve for x
    x = 243,196,386.51/19,435.68
  6. Step 6: Final answer
    x = 12,512.88

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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.