Home / 28,048.30-38,706.72-15,301.51

Finding the Fourth Proportional to 28,048.30, 38,706.72 and 15,301.51

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Solution

The fourth proportional to 28,048.30, 38,706.72 and 15,301.51 is: 21,116.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,048.30 : 38,706.72 = 15,301.51 : x
  2. Step 2: Convert to fraction form
    28,048.30/38,706.72 = 15,301.51/x
  3. Step 3: Cross multiply
    28,048.30x = 38,706.72 × 15,301.51
  4. Step 4: Simplify right side
    28,048.30x = 592,271,263.15
  5. Step 5: Solve for x
    x = 592,271,263.15/28,048.30
  6. Step 6: Final answer
    x = 21,116.12

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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.