Home / 42,784.90-64,179.17-13,202.08

Finding the Fourth Proportional to 42,784.90, 64,179.17 and 13,202.08

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Solution

The fourth proportional to 42,784.90, 64,179.17 and 13,202.08 is: 19,803.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,784.90 : 64,179.17 = 13,202.08 : x
  2. Step 2: Convert to fraction form
    42,784.90/64,179.17 = 13,202.08/x
  3. Step 3: Cross multiply
    42,784.90x = 64,179.17 × 13,202.08
  4. Step 4: Simplify right side
    42,784.90x = 847,298,536.67
  5. Step 5: Solve for x
    x = 847,298,536.67/42,784.90
  6. Step 6: Final answer
    x = 19,803.68

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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.