Home / 15,920.40-21,955.47-10,823.58

Finding the Fourth Proportional to 15,920.40, 21,955.47 and 10,823.58

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Solution

The fourth proportional to 15,920.40, 21,955.47 and 10,823.58 is: 14,926.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,920.40 : 21,955.47 = 10,823.58 : x
  2. Step 2: Convert to fraction form
    15,920.40/21,955.47 = 10,823.58/x
  3. Step 3: Cross multiply
    15,920.40x = 21,955.47 × 10,823.58
  4. Step 4: Simplify right side
    15,920.40x = 237,636,785.98
  5. Step 5: Solve for x
    x = 237,636,785.98/15,920.40
  6. Step 6: Final answer
    x = 14,926.56

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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.