Home / 27,607.90-38,088.89-15,664.31

Finding the Fourth Proportional to 27,607.90, 38,088.89 and 15,664.31

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Solution

The fourth proportional to 27,607.90, 38,088.89 and 15,664.31 is: 21,611.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,607.90 : 38,088.89 = 15,664.31 : x
  2. Step 2: Convert to fraction form
    27,607.90/38,088.89 = 15,664.31/x
  3. Step 3: Cross multiply
    27,607.90x = 38,088.89 × 15,664.31
  4. Step 4: Simplify right side
    27,607.90x = 596,636,303.77
  5. Step 5: Solve for x
    x = 596,636,303.77/27,607.90
  6. Step 6: Final answer
    x = 21,611.08

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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.