Home / 28,070.17-38,736.91-15,323.36

Finding the Fourth Proportional to 28,070.17, 38,736.91 and 15,323.36

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Solution

The fourth proportional to 28,070.17, 38,736.91 and 15,323.36 is: 21,146.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,070.17 : 38,736.91 = 15,323.36 : x
  2. Step 2: Convert to fraction form
    28,070.17/38,736.91 = 15,323.36/x
  3. Step 3: Cross multiply
    28,070.17x = 38,736.91 × 15,323.36
  4. Step 4: Simplify right side
    28,070.17x = 593,579,674.00
  5. Step 5: Solve for x
    x = 593,579,674.00/28,070.17
  6. Step 6: Final answer
    x = 21,146.28

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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.