Home / 38,543.12-53,182.56-21,547.70

Finding the Fourth Proportional to 38,543.12, 53,182.56 and 21,547.70

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Solution

The fourth proportional to 38,543.12, 53,182.56 and 21,547.70 is: 29,731.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,543.12 : 53,182.56 = 21,547.70 : x
  2. Step 2: Convert to fraction form
    38,543.12/53,182.56 = 21,547.70/x
  3. Step 3: Cross multiply
    38,543.12x = 53,182.56 × 21,547.70
  4. Step 4: Simplify right side
    38,543.12x = 1,145,961,848.11
  5. Step 5: Solve for x
    x = 1,145,961,848.11/38,543.12
  6. Step 6: Final answer
    x = 29,731.94

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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.