Home / 38,434.43-53,019.33-31,272.35

Finding the Fourth Proportional to 38,434.43, 53,019.33 and 31,272.35

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Solution

The fourth proportional to 38,434.43, 53,019.33 and 31,272.35 is: 43,139.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,434.43 : 53,019.33 = 31,272.35 : x
  2. Step 2: Convert to fraction form
    38,434.43/53,019.33 = 31,272.35/x
  3. Step 3: Cross multiply
    38,434.43x = 53,019.33 × 31,272.35
  4. Step 4: Simplify right side
    38,434.43x = 1,658,038,779.43
  5. Step 5: Solve for x
    x = 1,658,038,779.43/38,434.43
  6. Step 6: Final answer
    x = 43,139.42

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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.