Home / 21,130.44-31,685.40-10,595.94

Finding the Fourth Proportional to 21,130.44, 31,685.40 and 10,595.94

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Solution

The fourth proportional to 21,130.44, 31,685.40 and 10,595.94 is: 15,888.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,130.44 : 31,685.40 = 10,595.94 : x
  2. Step 2: Convert to fraction form
    21,130.44/31,685.40 = 10,595.94/x
  3. Step 3: Cross multiply
    21,130.44x = 31,685.40 × 10,595.94
  4. Step 4: Simplify right side
    21,130.44x = 335,736,597.28
  5. Step 5: Solve for x
    x = 335,736,597.28/21,130.44
  6. Step 6: Final answer
    x = 15,888.77

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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.