Home / 20,838.10-28,726.69-14,859.40

Finding the Fourth Proportional to 20,838.10, 28,726.69 and 14,859.40

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Solution

The fourth proportional to 20,838.10, 28,726.69 and 14,859.40 is: 20,484.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,838.10 : 28,726.69 = 14,859.40 : x
  2. Step 2: Convert to fraction form
    20,838.10/28,726.69 = 14,859.40/x
  3. Step 3: Cross multiply
    20,838.10x = 28,726.69 × 14,859.40
  4. Step 4: Simplify right side
    20,838.10x = 426,861,159.46
  5. Step 5: Solve for x
    x = 426,861,159.46/20,838.10
  6. Step 6: Final answer
    x = 20,484.65

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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.