Home / 15,285.04-21,075.35-14,151.45

Finding the Fourth Proportional to 15,285.04, 21,075.35 and 14,151.45

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Solution

The fourth proportional to 15,285.04, 21,075.35 and 14,151.45 is: 19,512.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,285.04 : 21,075.35 = 14,151.45 : x
  2. Step 2: Convert to fraction form
    15,285.04/21,075.35 = 14,151.45/x
  3. Step 3: Cross multiply
    15,285.04x = 21,075.35 × 14,151.45
  4. Step 4: Simplify right side
    15,285.04x = 298,246,665.04
  5. Step 5: Solve for x
    x = 298,246,665.04/15,285.04
  6. Step 6: Final answer
    x = 19,512.32

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Double scale
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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.