Home / 30,417.07-41,975.11-16,988.51

Finding the Fourth Proportional to 30,417.07, 41,975.11 and 16,988.51

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Solution

The fourth proportional to 30,417.07, 41,975.11 and 16,988.51 is: 23,443.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,417.07 : 41,975.11 = 16,988.51 : x
  2. Step 2: Convert to fraction form
    30,417.07/41,975.11 = 16,988.51/x
  3. Step 3: Cross multiply
    30,417.07x = 41,975.11 × 16,988.51
  4. Step 4: Simplify right side
    30,417.07x = 713,094,575.99
  5. Step 5: Solve for x
    x = 713,094,575.99/30,417.07
  6. Step 6: Final answer
    x = 23,443.90

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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.