Home / 21,053.47-31,573.36-7,009.72

Finding the Fourth Proportional to 21,053.47, 31,573.36 and 7,009.72

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Solution

The fourth proportional to 21,053.47, 31,573.36 and 7,009.72 is: 10,512.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,053.47 : 31,573.36 = 7,009.72 : x
  2. Step 2: Convert to fraction form
    21,053.47/31,573.36 = 7,009.72/x
  3. Step 3: Cross multiply
    21,053.47x = 31,573.36 × 7,009.72
  4. Step 4: Simplify right side
    21,053.47x = 221,320,395.53
  5. Step 5: Solve for x
    x = 221,320,395.53/21,053.47
  6. Step 6: Final answer
    x = 10,512.30

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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.