Home / 42,480.09-63,720.14-19,090.13

Finding the Fourth Proportional to 42,480.09, 63,720.14 and 19,090.13

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Solution

The fourth proportional to 42,480.09, 63,720.14 and 19,090.13 is: 28,635.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,480.09 : 63,720.14 = 19,090.13 : x
  2. Step 2: Convert to fraction form
    42,480.09/63,720.14 = 19,090.13/x
  3. Step 3: Cross multiply
    42,480.09x = 63,720.14 × 19,090.13
  4. Step 4: Simplify right side
    42,480.09x = 1,216,425,342.17
  5. Step 5: Solve for x
    x = 1,216,425,342.17/42,480.09
  6. Step 6: Final answer
    x = 28,635.19

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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.