Home / 30,952.16-42,717.40-18,377.68

Finding the Fourth Proportional to 30,952.16, 42,717.40 and 18,377.68

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Solution

The fourth proportional to 30,952.16, 42,717.40 and 18,377.68 is: 25,363.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,952.16 : 42,717.40 = 18,377.68 : x
  2. Step 2: Convert to fraction form
    30,952.16/42,717.40 = 18,377.68/x
  3. Step 3: Cross multiply
    30,952.16x = 42,717.40 × 18,377.68
  4. Step 4: Simplify right side
    30,952.16x = 785,046,707.63
  5. Step 5: Solve for x
    x = 785,046,707.63/30,952.16
  6. Step 6: Final answer
    x = 25,363.23

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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.