Home / 30,381.76-41,935.63-17,637.80

Finding the Fourth Proportional to 30,381.76, 41,935.63 and 17,637.80

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Solution

The fourth proportional to 30,381.76, 41,935.63 and 17,637.80 is: 24,345.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,381.76 : 41,935.63 = 17,637.80 : x
  2. Step 2: Convert to fraction form
    30,381.76/41,935.63 = 17,637.80/x
  3. Step 3: Cross multiply
    30,381.76x = 41,935.63 × 17,637.80
  4. Step 4: Simplify right side
    30,381.76x = 739,652,271.46
  5. Step 5: Solve for x
    x = 739,652,271.46/30,381.76
  6. Step 6: Final answer
    x = 24,345.28

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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.