Home / 19,688.57-29,531.35-4,897.46

Finding the Fourth Proportional to 19,688.57, 29,531.35 and 4,897.46

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Solution

The fourth proportional to 19,688.57, 29,531.35 and 4,897.46 is: 7,345.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,688.57 : 29,531.35 = 4,897.46 : x
  2. Step 2: Convert to fraction form
    19,688.57/29,531.35 = 4,897.46/x
  3. Step 3: Cross multiply
    19,688.57x = 29,531.35 × 4,897.46
  4. Step 4: Simplify right side
    19,688.57x = 144,628,685.32
  5. Step 5: Solve for x
    x = 144,628,685.32/19,688.57
  6. Step 6: Final answer
    x = 7,345.82

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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.