Home / 38,015.68-57,018.12-13,055.32

Finding the Fourth Proportional to 38,015.68, 57,018.12 and 13,055.32

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Solution

The fourth proportional to 38,015.68, 57,018.12 and 13,055.32 is: 19,581.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,015.68 : 57,018.12 = 13,055.32 : x
  2. Step 2: Convert to fraction form
    38,015.68/57,018.12 = 13,055.32/x
  3. Step 3: Cross multiply
    38,015.68x = 57,018.12 × 13,055.32
  4. Step 4: Simplify right side
    38,015.68x = 744,389,802.40
  5. Step 5: Solve for x
    x = 744,389,802.40/38,015.68
  6. Step 6: Final answer
    x = 19,581.13

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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.