Home / 36,013.68-49,697.28-20,905.16

Finding the Fourth Proportional to 36,013.68, 49,697.28 and 20,905.16

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Solution

The fourth proportional to 36,013.68, 49,697.28 and 20,905.16 is: 28,848.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,013.68 : 49,697.28 = 20,905.16 : x
  2. Step 2: Convert to fraction form
    36,013.68/49,697.28 = 20,905.16/x
  3. Step 3: Cross multiply
    36,013.68x = 49,697.28 × 20,905.16
  4. Step 4: Simplify right side
    36,013.68x = 1,038,929,341.48
  5. Step 5: Solve for x
    x = 1,038,929,341.48/36,013.68
  6. Step 6: Final answer
    x = 28,848.19

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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.