Home / 19,729.31-29,590.65-5,688.77

Finding the Fourth Proportional to 19,729.31, 29,590.65 and 5,688.77

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Solution

The fourth proportional to 19,729.31, 29,590.65 and 5,688.77 is: 8,532.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,729.31 : 29,590.65 = 5,688.77 : x
  2. Step 2: Convert to fraction form
    19,729.31/29,590.65 = 5,688.77/x
  3. Step 3: Cross multiply
    19,729.31x = 29,590.65 × 5,688.77
  4. Step 4: Simplify right side
    19,729.31x = 168,334,254.05
  5. Step 5: Solve for x
    x = 168,334,254.05/19,729.31
  6. Step 6: Final answer
    x = 8,532.19

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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.