Home / 30,684.95-42,343.29-17,256.05

Finding the Fourth Proportional to 30,684.95, 42,343.29 and 17,256.05

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Solution

The fourth proportional to 30,684.95, 42,343.29 and 17,256.05 is: 23,812.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,684.95 : 42,343.29 = 17,256.05 : x
  2. Step 2: Convert to fraction form
    30,684.95/42,343.29 = 17,256.05/x
  3. Step 3: Cross multiply
    30,684.95x = 42,343.29 × 17,256.05
  4. Step 4: Simplify right side
    30,684.95x = 730,677,717.69
  5. Step 5: Solve for x
    x = 730,677,717.69/30,684.95
  6. Step 6: Final answer
    x = 23,812.25

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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.