Home / 42,820.09-64,239.58-12,833.13

Finding the Fourth Proportional to 42,820.09, 64,239.58 and 12,833.13

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Solution

The fourth proportional to 42,820.09, 64,239.58 and 12,833.13 is: 19,252.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,820.09 : 64,239.58 = 12,833.13 : x
  2. Step 2: Convert to fraction form
    42,820.09/64,239.58 = 12,833.13/x
  3. Step 3: Cross multiply
    42,820.09x = 64,239.58 × 12,833.13
  4. Step 4: Simplify right side
    42,820.09x = 824,395,138.23
  5. Step 5: Solve for x
    x = 824,395,138.23/42,820.09
  6. Step 6: Final answer
    x = 19,252.53

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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.