Home / 21,341.32-29,417.48-14,615.32

Finding the Fourth Proportional to 21,341.32, 29,417.48 and 14,615.32

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Solution

The fourth proportional to 21,341.32, 29,417.48 and 14,615.32 is: 20,146.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,341.32 : 29,417.48 = 14,615.32 : x
  2. Step 2: Convert to fraction form
    21,341.32/29,417.48 = 14,615.32/x
  3. Step 3: Cross multiply
    21,341.32x = 29,417.48 × 14,615.32
  4. Step 4: Simplify right side
    21,341.32x = 429,945,883.79
  5. Step 5: Solve for x
    x = 429,945,883.79/21,341.32
  6. Step 6: Final answer
    x = 20,146.17

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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.