Home / 28,600.03-39,444.64-20,130.18

Finding the Fourth Proportional to 28,600.03, 39,444.64 and 20,130.18

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Solution

The fourth proportional to 28,600.03, 39,444.64 and 20,130.18 is: 27,763.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,600.03 : 39,444.64 = 20,130.18 : x
  2. Step 2: Convert to fraction form
    28,600.03/39,444.64 = 20,130.18/x
  3. Step 3: Cross multiply
    28,600.03x = 39,444.64 × 20,130.18
  4. Step 4: Simplify right side
    28,600.03x = 794,027,837.81
  5. Step 5: Solve for x
    x = 794,027,837.81/28,600.03
  6. Step 6: Final answer
    x = 27,763.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.