Home / 28,247.52-38,984.08-15,674.72

Finding the Fourth Proportional to 28,247.52, 38,984.08 and 15,674.72

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Solution

The fourth proportional to 28,247.52, 38,984.08 and 15,674.72 is: 21,632.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,247.52 : 38,984.08 = 15,674.72 : x
  2. Step 2: Convert to fraction form
    28,247.52/38,984.08 = 15,674.72/x
  3. Step 3: Cross multiply
    28,247.52x = 38,984.08 × 15,674.72
  4. Step 4: Simplify right side
    28,247.52x = 611,064,538.46
  5. Step 5: Solve for x
    x = 611,064,538.46/28,247.52
  6. Step 6: Final answer
    x = 21,632.50

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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.