Home / 39,036.48-53,825.76-31,079.04

Finding the Fourth Proportional to 39,036.48, 53,825.76 and 31,079.04

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Solution

The fourth proportional to 39,036.48, 53,825.76 and 31,079.04 is: 42,853.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,036.48 : 53,825.76 = 31,079.04 : x
  2. Step 2: Convert to fraction form
    39,036.48/53,825.76 = 31,079.04/x
  3. Step 3: Cross multiply
    39,036.48x = 53,825.76 × 31,079.04
  4. Step 4: Simplify right side
    39,036.48x = 1,672,852,948.07
  5. Step 5: Solve for x
    x = 1,672,852,948.07/39,036.48
  6. Step 6: Final answer
    x = 42,853.58

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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.