Home / 28,040.65-38,695.52-15,465.40

Finding the Fourth Proportional to 28,040.65, 38,695.52 and 15,465.40

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Solution

The fourth proportional to 28,040.65, 38,695.52 and 15,465.40 is: 21,341.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,040.65 : 38,695.52 = 15,465.40 : x
  2. Step 2: Convert to fraction form
    28,040.65/38,695.52 = 15,465.40/x
  3. Step 3: Cross multiply
    28,040.65x = 38,695.52 × 15,465.40
  4. Step 4: Simplify right side
    28,040.65x = 598,441,636.93
  5. Step 5: Solve for x
    x = 598,441,636.93/28,040.65
  6. Step 6: Final answer
    x = 21,341.93

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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.