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Finding the Fourth Proportional to 35,119.84, 52,685.01 and 12,931.51

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Solution

The fourth proportional to 35,119.84, 52,685.01 and 12,931.51 is: 19,399.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,119.84 : 52,685.01 = 12,931.51 : x
  2. Step 2: Convert to fraction form
    35,119.84/52,685.01 = 12,931.51/x
  3. Step 3: Cross multiply
    35,119.84x = 52,685.01 × 12,931.51
  4. Step 4: Simplify right side
    35,119.84x = 681,296,733.67
  5. Step 5: Solve for x
    x = 681,296,733.67/35,119.84
  6. Step 6: Final answer
    x = 19,399.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.