Home / 42,840.91-64,259.52-11,676.16

Finding the Fourth Proportional to 42,840.91, 64,259.52 and 11,676.16

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Solution

The fourth proportional to 42,840.91, 64,259.52 and 11,676.16 is: 17,513.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,840.91 : 64,259.52 = 11,676.16 : x
  2. Step 2: Convert to fraction form
    42,840.91/64,259.52 = 11,676.16/x
  3. Step 3: Cross multiply
    42,840.91x = 64,259.52 × 11,676.16
  4. Step 4: Simplify right side
    42,840.91x = 750,304,437.04
  5. Step 5: Solve for x
    x = 750,304,437.04/42,840.91
  6. Step 6: Final answer
    x = 17,513.74

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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.