Home / 47,210.86-70,828.44-13,929.58

Finding the Fourth Proportional to 47,210.86, 70,828.44 and 13,929.58

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Solution

The fourth proportional to 47,210.86, 70,828.44 and 13,929.58 is: 20,897.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,210.86 : 70,828.44 = 13,929.58 : x
  2. Step 2: Convert to fraction form
    47,210.86/70,828.44 = 13,929.58/x
  3. Step 3: Cross multiply
    47,210.86x = 70,828.44 × 13,929.58
  4. Step 4: Simplify right side
    47,210.86x = 986,610,421.26
  5. Step 5: Solve for x
    x = 986,610,421.26/47,210.86
  6. Step 6: Final answer
    x = 20,897.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.