Home / 30,779.64-42,476.28-17,350.91

Finding the Fourth Proportional to 30,779.64, 42,476.28 and 17,350.91

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Solution

The fourth proportional to 30,779.64, 42,476.28 and 17,350.91 is: 23,944.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,779.64 : 42,476.28 = 17,350.91 : x
  2. Step 2: Convert to fraction form
    30,779.64/42,476.28 = 17,350.91/x
  3. Step 3: Cross multiply
    30,779.64x = 42,476.28 × 17,350.91
  4. Step 4: Simplify right side
    30,779.64x = 737,001,899.03
  5. Step 5: Solve for x
    x = 737,001,899.03/30,779.64
  6. Step 6: Final answer
    x = 23,944.46

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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.