Home / 19,888.72-29,846.64-10,528.36

Finding the Fourth Proportional to 19,888.72, 29,846.64 and 10,528.36

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Solution

The fourth proportional to 19,888.72, 29,846.64 and 10,528.36 is: 15,799.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,888.72 : 29,846.64 = 10,528.36 : x
  2. Step 2: Convert to fraction form
    19,888.72/29,846.64 = 10,528.36/x
  3. Step 3: Cross multiply
    19,888.72x = 29,846.64 × 10,528.36
  4. Step 4: Simplify right side
    19,888.72x = 314,236,170.71
  5. Step 5: Solve for x
    x = 314,236,170.71/19,888.72
  6. Step 6: Final answer
    x = 15,799.72

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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.