Home / 42,377.64-63,559.70-11,215.32

Finding the Fourth Proportional to 42,377.64, 63,559.70 and 11,215.32

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Solution

The fourth proportional to 42,377.64, 63,559.70 and 11,215.32 is: 16,821.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,377.64 : 63,559.70 = 11,215.32 : x
  2. Step 2: Convert to fraction form
    42,377.64/63,559.70 = 11,215.32/x
  3. Step 3: Cross multiply
    42,377.64x = 63,559.70 × 11,215.32
  4. Step 4: Simplify right side
    42,377.64x = 712,842,374.60
  5. Step 5: Solve for x
    x = 712,842,374.60/42,377.64
  6. Step 6: Final answer
    x = 16,821.19

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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.