Home / 42,975.84-64,462.41-11,810.82

Finding the Fourth Proportional to 42,975.84, 64,462.41 and 11,810.82

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Solution

The fourth proportional to 42,975.84, 64,462.41 and 11,810.82 is: 17,715.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,975.84 : 64,462.41 = 11,810.82 : x
  2. Step 2: Convert to fraction form
    42,975.84/64,462.41 = 11,810.82/x
  3. Step 3: Cross multiply
    42,975.84x = 64,462.41 × 11,810.82
  4. Step 4: Simplify right side
    42,975.84x = 761,353,921.28
  5. Step 5: Solve for x
    x = 761,353,921.28/42,975.84
  6. Step 6: Final answer
    x = 17,715.86

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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.