Home / 28,463.48-39,275.98-15,888.76

Finding the Fourth Proportional to 28,463.48, 39,275.98 and 15,888.76

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Solution

The fourth proportional to 28,463.48, 39,275.98 and 15,888.76 is: 21,924.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,463.48 : 39,275.98 = 15,888.76 : x
  2. Step 2: Convert to fraction form
    28,463.48/39,275.98 = 15,888.76/x
  3. Step 3: Cross multiply
    28,463.48x = 39,275.98 × 15,888.76
  4. Step 4: Simplify right side
    28,463.48x = 624,046,619.98
  5. Step 5: Solve for x
    x = 624,046,619.98/28,463.48
  6. Step 6: Final answer
    x = 21,924.47

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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.