Home / 38,386.17-52,970.76-21,389.40

Finding the Fourth Proportional to 38,386.17, 52,970.76 and 21,389.40

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Solution

The fourth proportional to 38,386.17, 52,970.76 and 21,389.40 is: 29,516.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,386.17 : 52,970.76 = 21,389.40 : x
  2. Step 2: Convert to fraction form
    38,386.17/52,970.76 = 21,389.40/x
  3. Step 3: Cross multiply
    38,386.17x = 52,970.76 × 21,389.40
  4. Step 4: Simplify right side
    38,386.17x = 1,133,012,773.94
  5. Step 5: Solve for x
    x = 1,133,012,773.94/38,386.17
  6. Step 6: Final answer
    x = 29,516.17

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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.