Home / 42,590.09-63,882.84-13,005.63

Finding the Fourth Proportional to 42,590.09, 63,882.84 and 13,005.63

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Solution

The fourth proportional to 42,590.09, 63,882.84 and 13,005.63 is: 19,507.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,590.09 : 63,882.84 = 13,005.63 : x
  2. Step 2: Convert to fraction form
    42,590.09/63,882.84 = 13,005.63/x
  3. Step 3: Cross multiply
    42,590.09x = 63,882.84 × 13,005.63
  4. Step 4: Simplify right side
    42,590.09x = 830,836,580.39
  5. Step 5: Solve for x
    x = 830,836,580.39/42,590.09
  6. Step 6: Final answer
    x = 19,507.74

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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.