Home / 42,603.79-63,908.24-13,021.88

Finding the Fourth Proportional to 42,603.79, 63,908.24 and 13,021.88

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Solution

The fourth proportional to 42,603.79, 63,908.24 and 13,021.88 is: 19,533.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,603.79 : 63,908.24 = 13,021.88 : x
  2. Step 2: Convert to fraction form
    42,603.79/63,908.24 = 13,021.88/x
  3. Step 3: Cross multiply
    42,603.79x = 63,908.24 × 13,021.88
  4. Step 4: Simplify right side
    42,603.79x = 832,205,210.76
  5. Step 5: Solve for x
    x = 832,205,210.76/42,603.79
  6. Step 6: Final answer
    x = 19,533.60

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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.