Home / 35,505.16-53,182.86-21,421.24

Finding the Fourth Proportional to 35,505.16, 53,182.86 and 21,421.24

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Solution

The fourth proportional to 35,505.16, 53,182.86 and 21,421.24 is: 32,086.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,505.16 : 53,182.86 = 21,421.24 : x
  2. Step 2: Convert to fraction form
    35,505.16/53,182.86 = 21,421.24/x
  3. Step 3: Cross multiply
    35,505.16x = 53,182.86 × 21,421.24
  4. Step 4: Simplify right side
    35,505.16x = 1,139,242,807.95
  5. Step 5: Solve for x
    x = 1,139,242,807.95/35,505.16
  6. Step 6: Final answer
    x = 32,086.68

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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.