Home / 28,117.63-42,175.53-7,341.13

Finding the Fourth Proportional to 28,117.63, 42,175.53 and 7,341.13

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Solution

The fourth proportional to 28,117.63, 42,175.53 and 7,341.13 is: 11,011.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,117.63 : 42,175.53 = 7,341.13 : x
  2. Step 2: Convert to fraction form
    28,117.63/42,175.53 = 7,341.13/x
  3. Step 3: Cross multiply
    28,117.63x = 42,175.53 × 7,341.13
  4. Step 4: Simplify right side
    28,117.63x = 309,615,943.11
  5. Step 5: Solve for x
    x = 309,615,943.11/28,117.63
  6. Step 6: Final answer
    x = 11,011.45

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.