Home / 28,148.34-38,845.08-15,573

Finding the Fourth Proportional to 28,148.34, 38,845.08 and 15,573

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Solution

The fourth proportional to 28,148.34, 38,845.08 and 15,573 is: 21,490.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,148.34 : 38,845.08 = 15,573 : x
  2. Step 2: Convert to fraction form
    28,148.34/38,845.08 = 15,573/x
  3. Step 3: Cross multiply
    28,148.34x = 38,845.08 × 15,573
  4. Step 4: Simplify right side
    28,148.34x = 604,934,430.84
  5. Step 5: Solve for x
    x = 604,934,430.84/28,148.34
  6. Step 6: Final answer
    x = 21,490.95

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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.