Home / 28,726.28-43,094.72-12,931.70

Finding the Fourth Proportional to 28,726.28, 43,094.72 and 12,931.70

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Solution

The fourth proportional to 28,726.28, 43,094.72 and 12,931.70 is: 19,399.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,726.28 : 43,094.72 = 12,931.70 : x
  2. Step 2: Convert to fraction form
    28,726.28/43,094.72 = 12,931.70/x
  3. Step 3: Cross multiply
    28,726.28x = 43,094.72 × 12,931.70
  4. Step 4: Simplify right side
    28,726.28x = 557,287,710.49
  5. Step 5: Solve for x
    x = 557,287,710.49/28,726.28
  6. Step 6: Final answer
    x = 19,399.93

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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.