Home / 38,492.47-53,116.59-21,495.40

Finding the Fourth Proportional to 38,492.47, 53,116.59 and 21,495.40

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Solution

The fourth proportional to 38,492.47, 53,116.59 and 21,495.40 is: 29,661.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,492.47 : 53,116.59 = 21,495.40 : x
  2. Step 2: Convert to fraction form
    38,492.47/53,116.59 = 21,495.40/x
  3. Step 3: Cross multiply
    38,492.47x = 53,116.59 × 21,495.40
  4. Step 4: Simplify right side
    38,492.47x = 1,141,762,348.69
  5. Step 5: Solve for x
    x = 1,141,762,348.69/38,492.47
  6. Step 6: Final answer
    x = 29,661.97

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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.