Home / 31,248.90-43,111.14-19,291.50

Finding the Fourth Proportional to 31,248.90, 43,111.14 and 19,291.50

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Solution

The fourth proportional to 31,248.90, 43,111.14 and 19,291.50 is: 26,614.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,248.90 : 43,111.14 = 19,291.50 : x
  2. Step 2: Convert to fraction form
    31,248.90/43,111.14 = 19,291.50/x
  3. Step 3: Cross multiply
    31,248.90x = 43,111.14 × 19,291.50
  4. Step 4: Simplify right side
    31,248.90x = 831,678,557.31
  5. Step 5: Solve for x
    x = 831,678,557.31/31,248.90
  6. Step 6: Final answer
    x = 26,614.65

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1.5x scale

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.