Home / 34,070.80-47,018.28-18,963.76

Finding the Fourth Proportional to 34,070.80, 47,018.28 and 18,963.76

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Solution

The fourth proportional to 34,070.80, 47,018.28 and 18,963.76 is: 26,170.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,070.80 : 47,018.28 = 18,963.76 : x
  2. Step 2: Convert to fraction form
    34,070.80/47,018.28 = 18,963.76/x
  3. Step 3: Cross multiply
    34,070.80x = 47,018.28 × 18,963.76
  4. Step 4: Simplify right side
    34,070.80x = 891,643,377.53
  5. Step 5: Solve for x
    x = 891,643,377.53/34,070.80
  6. Step 6: Final answer
    x = 26,170.31

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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.