Home / 35,079.12-48,411.81-20,931.66

Finding the Fourth Proportional to 35,079.12, 48,411.81 and 20,931.66

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Solution

The fourth proportional to 35,079.12, 48,411.81 and 20,931.66 is: 28,887.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,079.12 : 48,411.81 = 20,931.66 : x
  2. Step 2: Convert to fraction form
    35,079.12/48,411.81 = 20,931.66/x
  3. Step 3: Cross multiply
    35,079.12x = 48,411.81 × 20,931.66
  4. Step 4: Simplify right side
    35,079.12x = 1,013,339,546.90
  5. Step 5: Solve for x
    x = 1,013,339,546.90/35,079.12
  6. Step 6: Final answer
    x = 28,887.26

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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.