Home / 42,888.35-64,342.55-13,304.66

Finding the Fourth Proportional to 42,888.35, 64,342.55 and 13,304.66

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Solution

The fourth proportional to 42,888.35, 64,342.55 and 13,304.66 is: 19,960.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,888.35 : 64,342.55 = 13,304.66 : x
  2. Step 2: Convert to fraction form
    42,888.35/64,342.55 = 13,304.66/x
  3. Step 3: Cross multiply
    42,888.35x = 64,342.55 × 13,304.66
  4. Step 4: Simplify right side
    42,888.35x = 856,055,462.83
  5. Step 5: Solve for x
    x = 856,055,462.83/42,888.35
  6. Step 6: Final answer
    x = 19,960.09

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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.