Home / 38,407.36-53,001.84-21,411.40

Finding the Fourth Proportional to 38,407.36, 53,001.84 and 21,411.40

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Solution

The fourth proportional to 38,407.36, 53,001.84 and 21,411.40 is: 29,547.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,407.36 : 53,001.84 = 21,411.40 : x
  2. Step 2: Convert to fraction form
    38,407.36/53,001.84 = 21,411.40/x
  3. Step 3: Cross multiply
    38,407.36x = 53,001.84 × 21,411.40
  4. Step 4: Simplify right side
    38,407.36x = 1,134,843,596.98
  5. Step 5: Solve for x
    x = 1,134,843,596.98/38,407.36
  6. Step 6: Final answer
    x = 29,547.56

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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.