Home / 30,740.65-42,417.59-17,309.23

Finding the Fourth Proportional to 30,740.65, 42,417.59 and 17,309.23

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Solution

The fourth proportional to 30,740.65, 42,417.59 and 17,309.23 is: 23,884.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,740.65 : 42,417.59 = 17,309.23 : x
  2. Step 2: Convert to fraction form
    30,740.65/42,417.59 = 17,309.23/x
  3. Step 3: Cross multiply
    30,740.65x = 42,417.59 × 17,309.23
  4. Step 4: Simplify right side
    30,740.65x = 734,215,821.36
  5. Step 5: Solve for x
    x = 734,215,821.36/30,740.65
  6. Step 6: Final answer
    x = 23,884.20

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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.