Home / 38,635.52-53,312.58-21,637.40

Finding the Fourth Proportional to 38,635.52, 53,312.58 and 21,637.40

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Solution

The fourth proportional to 38,635.52, 53,312.58 and 21,637.40 is: 29,857.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,635.52 : 53,312.58 = 21,637.40 : x
  2. Step 2: Convert to fraction form
    38,635.52/53,312.58 = 21,637.40/x
  3. Step 3: Cross multiply
    38,635.52x = 53,312.58 × 21,637.40
  4. Step 4: Simplify right side
    38,635.52x = 1,153,545,618.49
  5. Step 5: Solve for x
    x = 1,153,545,618.49/38,635.52
  6. Step 6: Final answer
    x = 29,857.13

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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.