Home / 20,030.51-27,641.27-10,955.72

Finding the Fourth Proportional to 20,030.51, 27,641.27 and 10,955.72

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Solution

The fourth proportional to 20,030.51, 27,641.27 and 10,955.72 is: 15,118.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,030.51 : 27,641.27 = 10,955.72 : x
  2. Step 2: Convert to fraction form
    20,030.51/27,641.27 = 10,955.72/x
  3. Step 3: Cross multiply
    20,030.51x = 27,641.27 × 10,955.72
  4. Step 4: Simplify right side
    20,030.51x = 302,830,028.89
  5. Step 5: Solve for x
    x = 302,830,028.89/20,030.51
  6. Step 6: Final answer
    x = 15,118.44

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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.