Home / 28,248.07-38,983.06-15,501.80

Finding the Fourth Proportional to 28,248.07, 38,983.06 and 15,501.80

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Solution

The fourth proportional to 28,248.07, 38,983.06 and 15,501.80 is: 21,392.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,248.07 : 38,983.06 = 15,501.80 : x
  2. Step 2: Convert to fraction form
    28,248.07/38,983.06 = 15,501.80/x
  3. Step 3: Cross multiply
    28,248.07x = 38,983.06 × 15,501.80
  4. Step 4: Simplify right side
    28,248.07x = 604,307,599.51
  5. Step 5: Solve for x
    x = 604,307,599.51/28,248.07
  6. Step 6: Final answer
    x = 21,392.88

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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.