Home / 42,851.53-64,277.75-11,686.78

Finding the Fourth Proportional to 42,851.53, 64,277.75 and 11,686.78

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Solution

The fourth proportional to 42,851.53, 64,277.75 and 11,686.78 is: 17,530.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,851.53 : 64,277.75 = 11,686.78 : x
  2. Step 2: Convert to fraction form
    42,851.53/64,277.75 = 11,686.78/x
  3. Step 3: Cross multiply
    42,851.53x = 64,277.75 × 11,686.78
  4. Step 4: Simplify right side
    42,851.53x = 751,200,032.71
  5. Step 5: Solve for x
    x = 751,200,032.71/42,851.53
  6. Step 6: Final answer
    x = 17,530.30

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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.