Home / 30,407.57-41,966.65-16,979.69

Finding the Fourth Proportional to 30,407.57, 41,966.65 and 16,979.69

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Solution

The fourth proportional to 30,407.57, 41,966.65 and 16,979.69 is: 23,434.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,407.57 : 41,966.65 = 16,979.69 : x
  2. Step 2: Convert to fraction form
    30,407.57/41,966.65 = 16,979.69/x
  3. Step 3: Cross multiply
    30,407.57x = 41,966.65 × 16,979.69
  4. Step 4: Simplify right side
    30,407.57x = 712,580,707.34
  5. Step 5: Solve for x
    x = 712,580,707.34/30,407.57
  6. Step 6: Final answer
    x = 23,434.32

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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.