Home / 19,347.73-29,000.36-9,988.45

Finding the Fourth Proportional to 19,347.73, 29,000.36 and 9,988.45

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Solution

The fourth proportional to 19,347.73, 29,000.36 and 9,988.45 is: 14,971.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,347.73 : 29,000.36 = 9,988.45 : x
  2. Step 2: Convert to fraction form
    19,347.73/29,000.36 = 9,988.45/x
  3. Step 3: Cross multiply
    19,347.73x = 29,000.36 × 9,988.45
  4. Step 4: Simplify right side
    19,347.73x = 289,668,598.31
  5. Step 5: Solve for x
    x = 289,668,598.31/19,347.73
  6. Step 6: Final answer
    x = 14,971.71

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1.5x scale

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.