Home / 28,700.32-43,048.76-12,901.28

Finding the Fourth Proportional to 28,700.32, 43,048.76 and 12,901.28

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Solution

The fourth proportional to 28,700.32, 43,048.76 and 12,901.28 is: 19,351.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,700.32 : 43,048.76 = 12,901.28 : x
  2. Step 2: Convert to fraction form
    28,700.32/43,048.76 = 12,901.28/x
  3. Step 3: Cross multiply
    28,700.32x = 43,048.76 × 12,901.28
  4. Step 4: Simplify right side
    28,700.32x = 555,384,106.41
  5. Step 5: Solve for x
    x = 555,384,106.41/28,700.32
  6. Step 6: Final answer
    x = 19,351.15

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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.