Home / 30,779.14-42,475.59-17,350.40

Finding the Fourth Proportional to 30,779.14, 42,475.59 and 17,350.40

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Solution

The fourth proportional to 30,779.14, 42,475.59 and 17,350.40 is: 23,943.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,779.14 : 42,475.59 = 17,350.40 : x
  2. Step 2: Convert to fraction form
    30,779.14/42,475.59 = 17,350.40/x
  3. Step 3: Cross multiply
    30,779.14x = 42,475.59 × 17,350.40
  4. Step 4: Simplify right side
    30,779.14x = 736,968,582.92
  5. Step 5: Solve for x
    x = 736,968,582.92/30,779.14
  6. Step 6: Final answer
    x = 23,943.77

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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.