Home / 21,215.03-31,827.65-14,987.16

Finding the Fourth Proportional to 21,215.03, 31,827.65 and 14,987.16

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Solution

The fourth proportional to 21,215.03, 31,827.65 and 14,987.16 is: 22,484.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,215.03 : 31,827.65 = 14,987.16 : x
  2. Step 2: Convert to fraction form
    21,215.03/31,827.65 = 14,987.16/x
  3. Step 3: Cross multiply
    21,215.03x = 31,827.65 × 14,987.16
  4. Step 4: Simplify right side
    21,215.03x = 477,006,008.04
  5. Step 5: Solve for x
    x = 477,006,008.04/21,215.03
  6. Step 6: Final answer
    x = 22,484.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.