Home / 21,275.58-31,913.35-9,575.13

Finding the Fourth Proportional to 21,275.58, 31,913.35 and 9,575.13

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Solution

The fourth proportional to 21,275.58, 31,913.35 and 9,575.13 is: 14,362.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,275.58 : 31,913.35 = 9,575.13 : x
  2. Step 2: Convert to fraction form
    21,275.58/31,913.35 = 9,575.13/x
  3. Step 3: Cross multiply
    21,275.58x = 31,913.35 × 9,575.13
  4. Step 4: Simplify right side
    21,275.58x = 305,574,474.99
  5. Step 5: Solve for x
    x = 305,574,474.99/21,275.58
  6. Step 6: Final answer
    x = 14,362.69

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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.