Home / 19,278.81-26,601.29-10,781.10

Finding the Fourth Proportional to 19,278.81, 26,601.29 and 10,781.10

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Solution

The fourth proportional to 19,278.81, 26,601.29 and 10,781.10 is: 14,875.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,278.81 : 26,601.29 = 10,781.10 : x
  2. Step 2: Convert to fraction form
    19,278.81/26,601.29 = 10,781.10/x
  3. Step 3: Cross multiply
    19,278.81x = 26,601.29 × 10,781.10
  4. Step 4: Simplify right side
    19,278.81x = 286,791,113.71
  5. Step 5: Solve for x
    x = 286,791,113.71/19,278.81
  6. Step 6: Final answer
    x = 14,875.98

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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.