Home / 28,068.51-38,735.27-15,970.95

Finding the Fourth Proportional to 28,068.51, 38,735.27 and 15,970.95

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Solution

The fourth proportional to 28,068.51, 38,735.27 and 15,970.95 is: 22,040.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,068.51 : 38,735.27 = 15,970.95 : x
  2. Step 2: Convert to fraction form
    28,068.51/38,735.27 = 15,970.95/x
  3. Step 3: Cross multiply
    28,068.51x = 38,735.27 × 15,970.95
  4. Step 4: Simplify right side
    28,068.51x = 618,638,980.55
  5. Step 5: Solve for x
    x = 618,638,980.55/28,068.51
  6. Step 6: Final answer
    x = 22,040.32

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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.