Home / 28,079.35-38,749.59-15,332.65

Finding the Fourth Proportional to 28,079.35, 38,749.59 and 15,332.65

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Solution

The fourth proportional to 28,079.35, 38,749.59 and 15,332.65 is: 21,159.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,079.35 : 38,749.59 = 15,332.65 : x
  2. Step 2: Convert to fraction form
    28,079.35/38,749.59 = 15,332.65/x
  3. Step 3: Cross multiply
    28,079.35x = 38,749.59 × 15,332.65
  4. Step 4: Simplify right side
    28,079.35x = 594,133,804.24
  5. Step 5: Solve for x
    x = 594,133,804.24/28,079.35
  6. Step 6: Final answer
    x = 21,159.10

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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.