Home / 42,554.77-63,841.32-21,219.12

Finding the Fourth Proportional to 42,554.77, 63,841.32 and 21,219.12

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Solution

The fourth proportional to 42,554.77, 63,841.32 and 21,219.12 is: 31,833.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,554.77 : 63,841.32 = 21,219.12 : x
  2. Step 2: Convert to fraction form
    42,554.77/63,841.32 = 21,219.12/x
  3. Step 3: Cross multiply
    42,554.77x = 63,841.32 × 21,219.12
  4. Step 4: Simplify right side
    42,554.77x = 1,354,656,630.04
  5. Step 5: Solve for x
    x = 1,354,656,630.04/42,554.77
  6. Step 6: Final answer
    x = 31,833.25

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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.