Home / 42,669.08-64,001.82-13,085.36

Finding the Fourth Proportional to 42,669.08, 64,001.82 and 13,085.36

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Solution

The fourth proportional to 42,669.08, 64,001.82 and 13,085.36 is: 19,627.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,669.08 : 64,001.82 = 13,085.36 : x
  2. Step 2: Convert to fraction form
    42,669.08/64,001.82 = 13,085.36/x
  3. Step 3: Cross multiply
    42,669.08x = 64,001.82 × 13,085.36
  4. Step 4: Simplify right side
    42,669.08x = 837,486,855.36
  5. Step 5: Solve for x
    x = 837,486,855.36/42,669.08
  6. Step 6: Final answer
    x = 19,627.49

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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.