Home / 28,970.16-39,889.97-25,364.49

Finding the Fourth Proportional to 28,970.16, 39,889.97 and 25,364.49

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Solution

The fourth proportional to 28,970.16, 39,889.97 and 25,364.49 is: 34,925.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,970.16 : 39,889.97 = 25,364.49 : x
  2. Step 2: Convert to fraction form
    28,970.16/39,889.97 = 25,364.49/x
  3. Step 3: Cross multiply
    28,970.16x = 39,889.97 × 25,364.49
  4. Step 4: Simplify right side
    28,970.16x = 1,011,788,788.25
  5. Step 5: Solve for x
    x = 1,011,788,788.25/28,970.16
  6. Step 6: Final answer
    x = 34,925.21

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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.