Home / 21,079.65-29,031.03-17,510.30

Finding the Fourth Proportional to 21,079.65, 29,031.03 and 17,510.30

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Solution

The fourth proportional to 21,079.65, 29,031.03 and 17,510.30 is: 24,115.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,079.65 : 29,031.03 = 17,510.30 : x
  2. Step 2: Convert to fraction form
    21,079.65/29,031.03 = 17,510.30/x
  3. Step 3: Cross multiply
    21,079.65x = 29,031.03 × 17,510.30
  4. Step 4: Simplify right side
    21,079.65x = 508,341,899.45
  5. Step 5: Solve for x
    x = 508,341,899.45/21,079.65
  6. Step 6: Final answer
    x = 24,115.29

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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.