Home / 21,059.73-31,565.30-7,903.71

Finding the Fourth Proportional to 21,059.73, 31,565.30 and 7,903.71

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Solution

The fourth proportional to 21,059.73, 31,565.30 and 7,903.71 is: 11,846.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,059.73 : 31,565.30 = 7,903.71 : x
  2. Step 2: Convert to fraction form
    21,059.73/31,565.30 = 7,903.71/x
  3. Step 3: Cross multiply
    21,059.73x = 31,565.30 × 7,903.71
  4. Step 4: Simplify right side
    21,059.73x = 249,482,937.74
  5. Step 5: Solve for x
    x = 249,482,937.74/21,059.73
  6. Step 6: Final answer
    x = 11,846.45

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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.