Home / 38,943-53,740.20-21,948.24

Finding the Fourth Proportional to 38,943, 53,740.20 and 21,948.24

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Solution

The fourth proportional to 38,943, 53,740.20 and 21,948.24 is: 30,287.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,943 : 53,740.20 = 21,948.24 : x
  2. Step 2: Convert to fraction form
    38,943/53,740.20 = 21,948.24/x
  3. Step 3: Cross multiply
    38,943x = 53,740.20 × 21,948.24
  4. Step 4: Simplify right side
    38,943x = 1,179,502,807.25
  5. Step 5: Solve for x
    x = 1,179,502,807.25/38,943
  6. Step 6: Final answer
    x = 30,287.93

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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.