Home / 20,319.15-30,343.71-20,099.24

Finding the Fourth Proportional to 20,319.15, 30,343.71 and 20,099.24

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Solution

The fourth proportional to 20,319.15, 30,343.71 and 20,099.24 is: 30,015.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,319.15 : 30,343.71 = 20,099.24 : x
  2. Step 2: Convert to fraction form
    20,319.15/30,343.71 = 20,099.24/x
  3. Step 3: Cross multiply
    20,319.15x = 30,343.71 × 20,099.24
  4. Step 4: Simplify right side
    20,319.15x = 609,885,547.22
  5. Step 5: Solve for x
    x = 609,885,547.22/20,319.15
  6. Step 6: Final answer
    x = 30,015.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.