Home / 35,531.44-53,308.02-21,315.67

Finding the Fourth Proportional to 35,531.44, 53,308.02 and 21,315.67

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Solution

The fourth proportional to 35,531.44, 53,308.02 and 21,315.67 is: 31,980.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,531.44 : 53,308.02 = 21,315.67 : x
  2. Step 2: Convert to fraction form
    35,531.44/53,308.02 = 21,315.67/x
  3. Step 3: Cross multiply
    35,531.44x = 53,308.02 × 21,315.67
  4. Step 4: Simplify right side
    35,531.44x = 1,136,296,162.67
  5. Step 5: Solve for x
    x = 1,136,296,162.67/35,531.44
  6. Step 6: Final answer
    x = 31,980.02

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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.