Home / 42,776.10-64,173.26-21,718.94

Finding the Fourth Proportional to 42,776.10, 64,173.26 and 21,718.94

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Solution

The fourth proportional to 42,776.10, 64,173.26 and 21,718.94 is: 32,583.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,776.10 : 64,173.26 = 21,718.94 : x
  2. Step 2: Convert to fraction form
    42,776.10/64,173.26 = 21,718.94/x
  3. Step 3: Cross multiply
    42,776.10x = 64,173.26 × 21,718.94
  4. Step 4: Simplify right side
    42,776.10x = 1,393,774,916.98
  5. Step 5: Solve for x
    x = 1,393,774,916.98/42,776.10
  6. Step 6: Final answer
    x = 32,583.03

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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.