Home / 42,618.06-63,930.33-13,038.12

Finding the Fourth Proportional to 42,618.06, 63,930.33 and 13,038.12

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Solution

The fourth proportional to 42,618.06, 63,930.33 and 13,038.12 is: 19,558.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,618.06 : 63,930.33 = 13,038.12 : x
  2. Step 2: Convert to fraction form
    42,618.06/63,930.33 = 13,038.12/x
  3. Step 3: Cross multiply
    42,618.06x = 63,930.33 × 13,038.12
  4. Step 4: Simplify right side
    42,618.06x = 833,531,314.18
  5. Step 5: Solve for x
    x = 833,531,314.18/42,618.06
  6. Step 6: Final answer
    x = 19,558.17

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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.