Home / 42,480.98-63,717.35-12,899.07

Finding the Fourth Proportional to 42,480.98, 63,717.35 and 12,899.07

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Solution

The fourth proportional to 42,480.98, 63,717.35 and 12,899.07 is: 19,347.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,480.98 : 63,717.35 = 12,899.07 : x
  2. Step 2: Convert to fraction form
    42,480.98/63,717.35 = 12,899.07/x
  3. Step 3: Cross multiply
    42,480.98x = 63,717.35 × 12,899.07
  4. Step 4: Simplify right side
    42,480.98x = 821,894,493.37
  5. Step 5: Solve for x
    x = 821,894,493.37/42,480.98
  6. Step 6: Final answer
    x = 19,347.35

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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.