Home / 42,600.64-63,910.32-13,020.76

Finding the Fourth Proportional to 42,600.64, 63,910.32 and 13,020.76

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Solution

The fourth proportional to 42,600.64, 63,910.32 and 13,020.76 is: 19,534.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,600.64 : 63,910.32 = 13,020.76 : x
  2. Step 2: Convert to fraction form
    42,600.64/63,910.32 = 13,020.76/x
  3. Step 3: Cross multiply
    42,600.64x = 63,910.32 × 13,020.76
  4. Step 4: Simplify right side
    42,600.64x = 832,160,938.24
  5. Step 5: Solve for x
    x = 832,160,938.24/42,600.64
  6. Step 6: Final answer
    x = 19,534.00

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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.