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Finding the Fourth Proportional to 42,652.84, 63,980.76 and 11,488.84

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Solution

The fourth proportional to 42,652.84, 63,980.76 and 11,488.84 is: 17,233.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,652.84 : 63,980.76 = 11,488.84 : x
  2. Step 2: Convert to fraction form
    42,652.84/63,980.76 = 11,488.84/x
  3. Step 3: Cross multiply
    42,652.84x = 63,980.76 × 11,488.84
  4. Step 4: Simplify right side
    42,652.84x = 735,064,714.72
  5. Step 5: Solve for x
    x = 735,064,714.72/42,652.84
  6. Step 6: Final answer
    x = 17,233.66

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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.