Home / 38,407.15-53,001.75-21,411.24

Finding the Fourth Proportional to 38,407.15, 53,001.75 and 21,411.24

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Solution

The fourth proportional to 38,407.15, 53,001.75 and 21,411.24 is: 29,547.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,407.15 : 53,001.75 = 21,411.24 : x
  2. Step 2: Convert to fraction form
    38,407.15/53,001.75 = 21,411.24/x
  3. Step 3: Cross multiply
    38,407.15x = 53,001.75 × 21,411.24
  4. Step 4: Simplify right side
    38,407.15x = 1,134,833,189.67
  5. Step 5: Solve for x
    x = 1,134,833,189.67/38,407.15
  6. Step 6: Final answer
    x = 29,547.45

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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.