Home / 19,273.60-26,566.80-15,730.72

Finding the Fourth Proportional to 19,273.60, 26,566.80 and 15,730.72

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Solution

The fourth proportional to 19,273.60, 26,566.80 and 15,730.72 is: 21,683.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,273.60 : 26,566.80 = 15,730.72 : x
  2. Step 2: Convert to fraction form
    19,273.60/26,566.80 = 15,730.72/x
  3. Step 3: Cross multiply
    19,273.60x = 26,566.80 × 15,730.72
  4. Step 4: Simplify right side
    19,273.60x = 417,914,892.10
  5. Step 5: Solve for x
    x = 417,914,892.10/19,273.60
  6. Step 6: Final answer
    x = 21,683.28

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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.