Home / 42,396.08-63,551.64-21,271.76

Finding the Fourth Proportional to 42,396.08, 63,551.64 and 21,271.76

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Solution

The fourth proportional to 42,396.08, 63,551.64 and 21,271.76 is: 31,886.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,396.08 : 63,551.64 = 21,271.76 : x
  2. Step 2: Convert to fraction form
    42,396.08/63,551.64 = 21,271.76/x
  3. Step 3: Cross multiply
    42,396.08x = 63,551.64 × 21,271.76
  4. Step 4: Simplify right side
    42,396.08x = 1,351,855,233.69
  5. Step 5: Solve for x
    x = 1,351,855,233.69/42,396.08
  6. Step 6: Final answer
    x = 31,886.33

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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.