Home / 42,603.93-63,903.55-13,021.75

Finding the Fourth Proportional to 42,603.93, 63,903.55 and 13,021.75

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Solution

The fourth proportional to 42,603.93, 63,903.55 and 13,021.75 is: 19,531.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,603.93 : 63,903.55 = 13,021.75 : x
  2. Step 2: Convert to fraction form
    42,603.93/63,903.55 = 13,021.75/x
  3. Step 3: Cross multiply
    42,603.93x = 63,903.55 × 13,021.75
  4. Step 4: Simplify right side
    42,603.93x = 832,136,052.21
  5. Step 5: Solve for x
    x = 832,136,052.21/42,603.93
  6. Step 6: Final answer
    x = 19,531.91

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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.